Tuesday, December 1, 2020

30 november 2020

Continuing winter conditions last night: foggy haze in the air and mediocre seeing.  I kept the 8-inch mask on throughout.  From 8-9pm I viewed a variety of doubles, some very interesting, using the Tour mode on the Argo.  No notes, however, just tourist mode.  After 9pm I observed from my lists, some good pairs despite the conditions -- however the proximity of the nearly full moon kept the fainter pairs out of reach.

STF 333 AB: 203; 205x: Eps Ari: Beautiful split of white stars, less than 1 delta mag, a little more than 1".  Very nice pair.  Physical with a 1215 year period. 
02H 59M 12.73S +21° 20' 25.6" P.A. 210 SEP 1.32 MAG 5.17,5.57 SP A2VS+A2VS DIST. 101.94 PC (332.53 L.Y.)

STT 49 AB: 203; 205x: 50 Ari.  Very fine pair, white A and dull B, ~3 delta mag, ~2", very pretty.   Physical, it has widened from 1.2" since discovery in 1865.
03H 00M 31.51S +18° 00' 18.1" P.A. 50 SEP 2.3 MAG 6.80,9.92 SP A0 DIST. 122.4 PC (399.27 L.Y.)

STF 346 AB: 203; 333x: What a great set!  The closest are a near equal pair of white stars, elongated with a slight notch, There's a faint C ~5" and slight more than a right angle in PA.  Interesting set.  Physical with 227 year period.
03H 05M 26.69S +25° 15' 18.7" P.A. 258.6 SEP 0.51 MAG 6.21,6.19 SP B7V DIST. 165.29 PC (539.18 L.Y.)

AG 61 AB: 203; 333x: Minute pair, split at best moments, light orange stars, noticeable mag difference.
03H 06M 52.47S +20° 51' 43.1" P.A. 23 SEP 0.8 MAG 9.21,9.43 SP G0 DIST. 374.53 PC (1221.72 L.Y.)

BU 1030 AB: 203; 333x: Good clean split, slight magnitude difference, small pair.  Really good.  Physical with 571 year period.  
03H 10M 06.57S +21° 44' 49.5" P.A. 100.6 SEP 0.8 MAG 7.81,9.67 SP F0 DIST. 118.06 PC (385.11 L.Y.)

GLP 1 AB: 203; 205x: Faint but easy pair of white stars, near equal, well split.  Physical.  S. Glasenapp, active in France during the 1890s.
03H 10M 48.97S +15° 08' 07.5" P.A. 89 SEP 4.5 MAG 10.42,10.65 SP F8

BU 530 BC: 203; 333x: Component of STF 366.  Faint, and is mostly a hazy elongation which brightens each end with seeing --- difficult on such a night as this with poor seeing and transparency.  It makes me wonder how Struve missed it?  There are 26 observations in WDS so it should have been determined to be physical by now... 
03H 14M 18.93S +22° 57' 48.0" P.A. 191 SEP 1.9 MAG 10.43,11.10 DIST. 146.2 PC (476.9 L.Y.)

STF 376 AB: 203; 205x: Easy wide pair, white stars
03H 20M 20.64S +19° 43' 49.3" P.A. 252 SEP 7.2 MAG 8.33,8.44 SP A2V DIST. 123.15 PC (401.72 L.Y.)

STF 375 AB: 203; 333x: Easy wide pair, ~3", ~2 delta, white and bluish
03H 20M 21.23S +23° 41' 21.9" P.A. 316 SEP 2.7 MAG 7.62,9.90 SP A7IV DIST. 104.6 PC (341.21 L.Y.)

STF 377 AB: 203; 333x: Faint in poor conditions, ~1 delta mag., ~1" 
03H 20M 34.14S +19° 10' 49.5" P.A. 110 SEP 1.1 MAG 8.78,9.31 SP A2.5V DIST. 194.17 PC (633.38 L.Y.)

STF 379 AB: 203; 205x: Very wide, near equal white stars.  Physical
03H 22M 51.83S +29° 49' 06.3" P.A. 101 SEP 10.4 MAG 8.59,8.80 SP A2 DIST. 205.34 PC (669.82 L.Y.)

STF 381 AB: 203; 205x: Very fine split, white and blue stars, ~1 delta mag, ~1" 
03H 23M 19.33S +20° 58' 13.9" P.A. 109 SEP 1.1 MAG 7.56,8.75 SP G5

STF 271 AB: 203; 205x: Pretty white star and much fainter wide B
02H 30M 32.31S +25° 14' 06.8" P.A. 183 SEP 12.8 MAG 5.93,9.94 SP F6IV DIST. 51.76 PC (168.84 L.Y.)

STF 273 AB: 203; 205x: Prototypical Struve: White, wide, ~1 delta mag. 
02H 32M 02.89S +18° 22' 25.2" SEP 7.2 MAG 8.56,9.12 SP F5 DIST. 110.86 PC (361.63 L.Y.)

HLD 63 AB: 203; 205x: Fine pair, split with seeing, ~1", light orange, slight magnitude difference. 
02H 34M 23.36S +11° 48' 16.9" P.A. 292 SEP 1.5 MAG 9.68,10.01 SP F8

STF 287 AB: 203; 205x: White and wide, ~2 delta mag.  Physical
02H 38M 59.78S +14° 51' 37.6" P.A. 74 SEP 6.8 MAG 7.36,9.61 SP G5 DIST. 271 PC (884 L.Y.)

STF 291 AB: 203; 205x: White stars, near equal, close but well split, makes a 2+1 with a ~2 delta mag, very wide C
02H 41M 06.59S +18° 48' 00.7" P.A. 118 SEP 3.4 MAG 7.66,7.50 SP B9.5V DIST. 735.29 PC (2398.52 L.Y.)

I looked at the moon for a while with bino-viewers, but the seeing and conditions did not really hold up, so I packed it in after 20 minutes or so.

Saturday, November 28, 2020

27 november 2020

I'm surprised to notice that it's been one month since I've had a "serious" observing session from the back yard.  Seeing was good, but not great, and to my disappointment there was a haze in the air despite the forecast.  The nearly full moon illuminated it so fainter stars were out of reach.  But it was good enough to go after some remaining short period pairs in the available right ascension, so that's what I did.  I observed from around 8pm to 11pm, ending on the moon, with seeing beginning to deteriorate.  I think I was on the wrong side of an inversion layer, trapping both the moisture and forming a layer of refracting air between me and the sky.

BU 989 AB: 508; 1067x: Overlapping disks, moderately strong notch, near equal.  This has an astonishingly short 11.57 year period.  At apastron now, it will be at periastron by 2025, and widen agin -- it will be fun to see this close then open again.
21H 44M 38.70S +25° 38' 42.0" P.A. 325.5 SEP 0.15 MAG 4.94,5.04 SP F5IV DIST. 34.22 PC (111.63 L.Y.)


COU 537 AB: 508; 1067x: Suspected with 667x.  Exceedingly difficult, it's an elongated rod pointed a particular way from the reference star in the field.  At moments of best seeing I detect two brightened ends of that rod, not quite split, but can tell is double.  PA is now to the north and this closely matches my sketch, however my sense of which is A and B is reversed.  47.3 year period, at apastron now, it will not be detectable after 2030.
22H 07M 40.20S +26° 21' 35.8" P.A. 342.9 SEP 0.24 MAG 8.60,8.80 SP G0


BU 1266 AB: 508; 533x: Very subtle elongation, seen as merely a bump on one side.  Very tough.  Light orange stars. My estimated PA is 90-degrees off.  48.4 year period, now nearing periastron, it will get a little easier, and make a quarter turn by 2037.  
23H 30M 26.29S +30° 49' 54.6" P.A. 134.3 SEP 0.18 MAG 8.35,8.14 SP F7V DIST. 68.07 PC (222.04 L.Y.)




BU 733 AB 508; 667x: 85 Peg.  With apodising mask.  Difficult, see a brightening with averted vision and foveal coaxing, but does show as faint star briefly.  My PA is ENE, which is slightly incorrect.   26.28 year period, this one is widening for apastron in 2035.  
00H 02M 10.18S +27° 04' 55.6" P.A. 112.2 SEP 0.7 MAG 5.83,8.90 SP G5VB+K5V DIST. 12.17 PC (39.7 L.Y.)



TDS 34 AB: 508; 333x: Very fine split, slightly unqueal, seen at 205x but more steady view with 333x.
00H 56M 47.40S +57° 12' 09.2" P.A. 43 SEP 1 MAG 10.92,10.94

STF 115 AB: 508; 533x: Wonderful split, more than hairline, white stars, near equal. Nice airy disks.  Physical with 222 year period, Struve discovered at 0.7" approaching apastron.
01H 23M 21.27S +58° 08' 35.6" P.A. 156.5 SEP 0.45 MAG 7.10,7.30 SP F5V DIST. 58.82 PC (191.87 L.Y.) 
BU 1102 BC: 508; 333x: A very faint fine pair, best seen with 333x, significant delta and just split, blue for faintness.  Near to a bright star. 
01H 27M 17.87S +60° 16' 58.5" P.A. 340 SEP 0.9 MAG 10.30,10.30 SP F2

KR 12 AB: 508; 667x: Light orange stars, noticeable mag difference, strongly notched but not split.
01H 41M 33.95S +62° 40' 36.6" P.A. 294 SEP 0.4 MAG 8.27,9.21 SP G8V DIST. 227.27 PC (741.35 L.Y.)

MLR 630 AB: 508; 667x: Slight elongation of white star, but no more resolution seen. 
01H 42M 57.74S +58° 06' 57.0" P.A. 211 SEP 0.3 MAG 7.92,7.79 SP F2 DIST. 107.07 PC (349.26 L.Y.)

BU 870 AB: 508; 1067x: Elongated at 667x, with 1067x it is a clear elongation with the B star sticking out like a stump, but not notched.  It is now near periastron, and will widen rapidly to 0.448" by 2030.  184.9 year period.  Need to go back and make a sketch, since it will be on the opposite side of the A star in 2030.   
01H 44M 17.96S +57° 32' 11.8" P.A. 287.2 SEP 0.24 MAG 6.29,8.68 SP A3V DIST. 84.96 PC (277.14 L.Y.)

Monday, November 16, 2020

pinnacles

We had some rain the end of last week, and once that air mass moved out we had some rare clear weather yesterday and last night. There was still some high water vapor, and seeing wasn't perfect, but good all the same.  I drove down to Pinnacles where six others had gathered for a night of viewing.  Since it's dark early, I arrived at 5:30pm and started observing around 6:30pm.  SQML did not get above 21.00; I suppose too much moisture in the air.  Fortunately the ground level stayed dry, and it did not dew as I feared it might.  I didn't note when I stopped, but it was about an hour after the others left, so sometime around 1:30 or 2:00am.  I slept a bit in my car and left around 6am.

I had my 10-inch Springsonian.  Instead of the Pocket Sky Atlas, this time I brought my Interstellarum atlas to try some challenge objects, mostly planetary nebula in Cassiopeia.  I had a number of dubious and marginal observations, and I realize if my interest is with these obscure objects, I really need to have a large aperture scope.  The 10-inch is nice for wide field and I do try to fulfill that purpose, but it's really a bit limited.

First up was Comet 88P/Howell, which was an easy find below Jupiter -- just beyond the field of view in the scope.  It was a small, very weak round glow, with diffuse edges and a faint pseudo-nucleus.  It was a little enhanced with the comet filter.  In a very rich field.  The comet was actually better seen in my 8x50mm finder as a small white patch, well offset from the surrounding sky.  I did not come back to it as it set a short time after.

Next was the area around Beta Cassiopeia, the starting point for my nebula searches.  Open cluster AI 20 was an unimpressive group of similar magnitude stars in a wedge shape.  Between it and Beta Cas was a rather broad patch of nebulosity, a darker sky background between them. Reflection nebula vdB1 bordered AI 20 and was a brighter cloud with some stars intermingled with it with some mottling or knots in the nebula.  vdB1 is 1600 light years away and five light years across.  There are two Herbig-Haro objects [which are emission nebula from mass ejected for newly formed stars], HH 162 & HH 164, plotted in this area, but I did not notice them (I was using only 35x).  


CTB 1 = Abell 85: This is an ancient supernova remnant, which in astrophotos appears large, about the size of the full moon, and a completed circle.  Abell first thought it was a planetary nebula but it was confirmed to be a supernova remnant in 1971.  What I saw is the brightest arc along the southern edge of the SNR, near the pointed triangle of stars, which appeared as an extremely faint wisp with ragged ends.  I could see it with both OIII and NBP filters, but the unfiltered view was best.   Astrophotos show a shell rupture on the opposite [NE] side from this arc.  The SNR is about 9700 light years away, 98 light years in diameter, and is thought to be 10,000 years old.


Sh 2-176: I had a very tenuous / doubtful observation of this planetary nebula.  Using a printed chart I found the right area of stars and at 50x with an OIII, I had an impression of a thin arcing glow running through one of a close pair of stars.  It was exceedingly faint; the surrounding sky was just a bit darker.  With more time observing the area to the north of the arc seemed to fill with a light milky haze to appear more round.  It may be from bias from looking at the printed finder which included a photo...


NGC 281 = Pacman Nebula.  On to some brighter fare.  I had not seen this object before, and it was a treat.  At 35x I could see the nebula around the brighter stars of the small open cluster IC 1590.  The nebula expanded into it's distinctive fat kidney bean shape with OIII, with unevenly crimped outer curve and a branching tree like dark nebula cutting one third of the nebula from the inner curve N-S, forming two lobes, one of which is brighter.  I noticed two patches of nebulosity around the two brighter stars "behind" the Pacman (to the SE of the outside curve about half a degree away).


WeSb 1: Weinberger-Sabaddin 1.  Attempted this one with 35x & 50x & OIII, and wrote "Extremely weak small round glow and blinking central star...poor line of six brighter stars with a few more above and below [outside the open cluster AI-Teu 1 approximately where the PNe should be], with faint sense of glow on one side of the string."  However reading the discovery paper, I find only a 15" half round glow was detected, and my observation is very doubtful since what I saw would seem to be too large, and I doubt prior observers would overlook a blinking star.  Uwe Glahn has a negative observation with a 16-inch in excellent conditions.  Interestingly, however, the PNe does appear to be on one side of a string of stars...  AI-Teu 1 is a rather large cluster, loosely formed of moderately bright and faint stars, probably around fifty in all, nicely detached from the surrounding field. 

To the north of Gamma Cas are two reflection nebulae, IC 59 & IC 63, which appeared as a haziness like a fog on the eyepiece.  It was best to keep Gamma out of the field.  IC 59 was smaller and lay between two bright stars to the north; IC 63 was to the east and was larger and more diffuse, mottled, with ill defined edges. 

NGC 225 is a fun little open cluster that looks just like a sailboat: A string of five stars topped by a triangle shaped asterism of medium and fainter stars.

Semeis 22: At 35x with OIII, this appeared as a faint but plain crescent, a bit less than half a circle, with some very subtle mottling and a bit brighter to the north.  The outer edge was more defined than the inner.  It has lost its full round shape with interaction with the interstellar medium, so it is considered to be an old PNe.  


Next I had a look at the "Heart and Soul" nebulae, from NGC 896, IC 1805, and IC 1848, along with numerus involved open clusters Teu 55, Mel 15, NGC 1027, Cr 32, 33, 34.  It's a bit much to describe, other than the extensive nebulosity running between and among star clusters, covering several field diameters.  I used the NBP filter.

I then had a look at two more emission nebulae, vdB14 & 15.  vdB15 surrounded bright star C Cam and made it have a bright hazy blue halo; vdB14 was an almost degree long elongation to the east of a double-double star, STF 385 & STF 384.  STF 389 was in the field, as was STF 396 on one end and STF 400 on the other.  Webb 2 was just beyond the field, it has a red primary.  There was an arc of ten brighter stars in the scene to help orientate me.


Kemble's Cascade was next, and the whole string including open cluster NGC 1502, with the bright pair in the middle, fit the field.  Moving the scope slightly south I could fit NGC 1501 planetary nebula, which appeared unfiltered as a small, purple doughnut, not unlike M57.  



Alicante 1 is a small, tight knot of faint stars, with two brighter ones framing it.  I also looked at dark nebula B6, moderately dark, mainly viewable as an absence of stars or change of greyscale, a large bean shape, no clear edges.

NGC 7331 & Stephen's Quintet: Seen in the same field.  7331 was a pretty bright spike, brighter in the middle; I did not see its attendant galaxies, the "fleas."  Stephan's Quintet looked like a ripple in the star field, a small cloudiness with a couple bright knots.  A very unique visual view.


It seems this telescope was made to view the California Nebula, NGC 1499.  At 35x with HBeta filter, it was very large, bright, with waves and ripples flowing through the main, curved body.  Each end was just outside the field of view: the NW end was stumpy, as if torn from some larger stalk, with jagged remnants left behind.  The SE end was long and wispy, tapering away to the NE, before the wisps were lost to view.  The northern outer curve was quite brighter, a thicker section of nebula.
 


Sh 2-216: I've tried for this planetary a couple of times previously, even with my 20-inch, but had failed to see it.  This night I saw its brighter eastern arc.  At 35x and with OIII, it was a very large, moderately faint arc covering about one quarter of what should be a round nebula.  That quarter filled about one quarter of my field, so it is a very large nebula indeed.  I felt some haze present in the center of the nebula within that arc.  It is the second closest PNe to earth (the Helix nebula is closest, according to the latest Gaia data), which explains its size, and is likely rather old.  


Simeis 147: This is the well known supernova remnant in the northeast corner of Taurus.  I had tried for this before too, but given the success I seemed to be having tried this one too.  At 35x and with OIII, I could see the three brighter arcs to the south west, south east, and north east (A-B-D-C as below).  Actually it was fairly easy, and starting from STF 749 as a starting point could follow the counter-clockwise course with three field diameters panning of my telescope.  I had the impression less of filaments than of a curved, partially degraded jet plane vapor trail.  The total extent of the nebula is 3 degrees, and is about 3,000 light years away and 40,000 years old.

Comet 2020 M3 Atlas: Thanks to Akarsh and his post on TAC, as otherwise I would not have printed out comet finder charts before going out, I observed this comet.  I tried for it first when Orion cleared the trees, but I could not find it -- I was searching south of Bellatrix as indicated by my chart for 11/15.  Later I realized the dates were in UT, so searching to the north, at the 11/16 mark, I quickly found the comet near open cluster Do 21, and made a sketch.  It was a moderately bright round hazy glow with a small non-stellar pseudo-nucleus.  The halo grew in size considerably with a comet filter.  About and hour later I re-observed the comet and noticed it had moved considerably far (one Do 21 width) away to the north.  Now that Orion was higher the comet was better resolved: The halo was quite large, and had the same improvement with the filter, and I could see the beginnings of a tail or elongated bulge.  

Many of us know there is a second open cluster, NGC 2158, near the great open cluster M35, and it is always a treat to compare the dense, round and mostly unresolved (at low power) NGC next to the bright, spangled Messier.  My Interstellarum atlas, however, plotted a third open cluster, Kp 63 (Koposov 63), also on M35's boarder.  Kp 63 is on the opposite side of M35's center than NGC 2158, and about half the distance from M35's center as NGC 2158's distance.  Interstellarum plotted enough stars for me to star hop in the eyepiece (at 84x this time) to where the cluster should be.  With averted vision I saw a faint, small chalk mark -- though whether this was in fact the cluster is probably an open question since it was discovered via a survey of infrared catalogs...  Vizer gives the position as 06 10 02 +24 33 38, 5 arcmin diameter, 3000 pc distant, and in the discovery paper mag 12.32.  According to the 2006 discovery paper, the authors automatically searched for star clusters "in very large stellar catalogs, which is based on convolution with density functions. We have applied this method to a subset of the Two Micron All Sky Survey catalog toward the Galactic anticenter.  We also developed a method to verify whether detected stellar groups are real star clusters, which tests whether the stars that form the spatial density peak also fall onto a single isochrone in the color–magnitude diagram. By fitting an isochrone to the data, we estimate at the same time the main physical parameters of a cluster: age, distance, color excess."  Why Interstellarum plots such objects, I don't know...



Abell 21, Medusa Nebula.  This is another one I've tried before without success, for whatever reason.  This time it was fairly large, coving half my field, rather bright kidney shaped cloud, filamentary structure running NE-SW on the inside, with brightening on the NE and SW ends.  The outer edge facing SE was brighter and more defined, the inside concave curve was more diffuse.  With OIII.  

Perseus Galaxy Cluster: Moving the scope 2.5-degrees east of Algol, I had a fine view of the faint seam of the brightest galaxies of the Perseus Galaxy Cluster.  These would be NGC 1267, 1270, 1272, 1273, 1275, and 1278 (seen with certainty), scattered like so many grains of rice, among several faint others popping into view around this string.  Amazing to think how far away, and how far across, I could see with my own eye.

NGC 891 & the NGC 910 Group: Also in the same field of view.  NGC 891 was fairly bright, small about a quarter of a degree, near edge-on, mottled halo.  The NGC 910 group was an "S" shaped wrinkle in the star field, very faint set of out of focus faint light.  

Seagull Nebula: IC 2177: This was a very interesting nebula, seen at 35x with OIII.  Long bands of turbulent cloud in a generally NE-SW, long slow arc, with a bulging center, forming a seagull with wings, a little larger than my field.  Several open clusters of moderate size are swept up by the wings.  To the NW is a mostly round, turbulent cloud, clipped by darkness, which shows best with HBeta -- this is Sh 2-292.


VMT 10, part of the Monoceros Loop: Irregularly shaped nebula which reminds me of a squid's head.  It is pretty large, filling 2/3rds of my field, filled with very faint turbulent cloud with very faint, slightly diffuse edges.  With OIII at 35x.  The Monoceros Loop proper is a very large (7x9 degree!) supernova remnant which also contains the Rosette Nebula to the south and the Cone Nebula to the north.  VMT 10 is a slight brightening in the overall nebulosity of the area.

Sh 2-273 & Cone Nebula: I made a good attempt at this, using 84x and HBeta.  The Christmas Tree cluster NGC 2264 was very nice and a harbinger of the pleasant season approaching us.  To my surprise Sh 2-273 showed up very plainly when I screwed on my filter: moderately bright with long streamers flowing at the base of the "tree" and along either side.  It looked like a Christmas Tree on fire.  I saw a gap in the nebula at the top of the "tree," just where the dark nebula LDN 1607 / Cone Nebula should be, but I did not see any dark nebula itself -- just the absence of the brighter nebulosity.  

Sunday, November 1, 2020

29 october 2020

Writing this up a couple days afterward, since it's been a busy last few days.  Our family decided to adopt a tortoise, named Connie (aka Avocado), from a sanctuary near Reading, CA.  I spent Friday building an inside enclosure table for her, and we drove up yesterday to pick her up.  Today we finished the enclosure with the correct lights and so forth.  She seems to be adjusting well and everyone's excited.

As I recall below seeing was pretty good, 7/10, with short stretches of better.  I observed a number of challenging pairs, then spent an hour so so first on Mars and then the Moon.  Utterly fantastic views of the moon, which was one day from full.  To my surprise, because of the high light angle, I was able to see several Plato craterlets: A, B, C, D, g, and even f, which was a first for me.  I did not see e but the bright ray which runs from the slumped wall through it was very plain.  I saw the central rille in Schroter's Valley.  And incredible views of Pythagoras, especially the central peaks which were clear and so distinct.  There was so much detail everywhere it was difficult.  At 205x & 333x with a light red filter.

MLR 21 AB: 508; 533x: Very fine split of faint B, tough, ~2"
23H 30M 55.18S +62° 19' 17.6" P.A. 195 SEP 2.2 MAG 9.20,10.40 SP F8

ES 109 AB: 508; 205x: B is faint but well split, ~3 delta mag, slightly ruddy color compared to bright white A
23H 31M 55.53S +54° 01' 10.0" P.A. 51 SEP 6.1 MAG 8.86,12.24 SP G5 DIST. 61.69 PC (201.23 L.Y.)

AG 293 AB: 508; 205x: Neat near equal white pair, well separated.
23H 32M 41.84S +57° 30' 51.3" P.A. 21 SEP 3.6 MAG 10.21,10.68 SP G5

A 1490 AB: 508; 533x: Excellent pair, B is very faint, a point just within A's diffraction ring, hazy most of the time but sharpens with seeing.  Nice. 
23H 33M 28.10S +52° 10' 15.9" P.A. 193 SEP 0.7 MAG 8.60,12.60 SP A0

STI 3005 AB: 508;205x: Faint pair, but easily spotted, slight magnitude difference,  wide
23H 35M 34.63S +54° 35' 41.6" P.A. 328 SEP 5.5 MAG 10.80,11.50

TDT 4119 AB: 508; 533x: With seeing two stars resolve, the brighter one is one more blue than white, well separated B though <1", significant magnitude difference, not quite 1 delta.
23H 36M 20.33S +53° 00' 30.9" P.A. 154 SEP 0.9 MAG 10.22,10.42 SP A0

COU 2673 AB: 508; 667x:  Hairline split at very best moments with 667x, equal.  Snowman at other magnifications.   
23H 36M 28.59S +51° 36' 00.1" P.A. 107 SEP 0.4 MAG 10.10,10.40 SP A0

HLD 58 AB: 508; 205x: Quite easy pair with a large delta mag, ~3" separation
23H 36M 37.28S +53° 57' 11.0" P.A. 356 SEP 3.7 MAG 8.68,11.59 SP A2 DIST. 306.75 PC (1000.62 L.Y.)

A 642 AB 508; 533x:  Very difficult.  Bluish-green A has to be a perfect disk and hold for several seconds, and B is a very minute point at the diffraction ring.  Without the seeing B is just a haze.  Physical.
23H 37M 53.77S +58° 05' 43.4" P.A. 27 SEP 0.8 MAG 8.86,10.16 SP F0 DIST. 371.75 PC (1212.65 L.Y.)

MLR 366 AB: 508; 667x:  With seeing, extremely faint B appears <1" from not a very bright A.  B denses up with seeing, it coalesces more than sharpens.
23H 40M 04.79S +60° 15' 06.0" P.A. 336 SEP 0.8 MAG 10.26,10.78 SP G0

MLR 653 AB: 508; 677x: Split very fine, more than hairline, significant delta mag.  Seeing allows two white points. Nice. 
01H 08M 32.19S +55° 54' 06.4" P.A. 232 SEP 0.5 MAG 10.36,10.49

BU 868 AB: 508; 205x: AB is easy at 205x, wide light orange A and blue B.   Burnham discovered with the 18.5-inch at Washburn and did not notice anything amiss with the A star during subsequent measures with the Lick 36-inch.  EGG 1 Aa-Ab is 0.048", O.J. Eggen discovered Aa-Ab in 1984 with the Kitt Peak 4m telescope.
01H 10M 00.67S +52° 01' 59.8" P.A. 233 SEP 9.2 MAG 8.00,10.49 SP F5 DIST. 236.41 PC (771.17 L.Y.)

STT 23 AB: 508; 205x: Pair of clean white stars, widely separated, near equal.  Physical.
01H 10M 07.56S +51° 44' 48.2" P.A. 191 SEP 14.5 MAG 8.14,8.59 SP F8 DIST. 79.24 PC (258.48 L.Y.)

MLR 627 AB: 508; 667x: Very brief notched elongation of nearly equal white stars, but very brief.<0.3", which was given in SkyTools, given the difficulty.  [Current precise separation is 0.18".]
01H 10M 15.63S +57° 10' 03.6" P.A. 173 SEP 0.2 MAG 10.20,10.40 SP A0

BU 235 Aa-Ab: 508; 333x: Amazing system with five faint pairings, but the main attraction is Aa-Ab, near equal bright A, hairline at 205x and and a nice clean split at 333x, light yellow stars, slight magnitude difference.  Seeing giving me nice round disks. Terrific.  Physical pair with a 278 year period.  Amazingly, Burnham discovered this with his 6-inch.  
01H 10M 34.31S +51° 00' 47.8" P.A. 140.5 SEP 0.8 MAG 7.54,7.82 SP F5V DIST. 104.6 PC (341.21 L.Y.)

STT 38 BC: 508; 1067x: I spent a good long while on this one, and tried hard to nail down the position angle.  At 1067x, both with and without an apodising mask, but both times with a #80A light blue filter, which did seem to calm the diffraction a little, I had a clear view of the elongation with a strong sense of the weaker end being to the East or to the ESE.  I used the "disable tracking" command in SkyTools to find West.  I also tried a 78% central obstruction mask, and while the diffraction became a grid, and the disks much smaller, I could clearly see the same elongation and weaker end, though at a much smaller scale.  To my delight the current orbital solution puts the PA at 120.6-degrees, 0.179" separation, so I think I have detected it.  I can't wait until 2033 when this becomes an easy pair! 

Thursday, October 29, 2020

28 october 2020

The night of the 27th I observed the moon with my 6-inch refractor, mostly lovely views of the moon.  I started to have intermittent tracking problems; the motors make a kind of electrical crackling noise, and the RA wheels will turn but they seem to not affect the worm.  I don't know if there are bad teeth in the main gear or if the smaller wheel is loose.  I always thought this mount was too small for the scope.  Frustrating.  I did have it working long enough to see the dark part of the moon occult a bright star, it's fun to watch it just wink out suddenly, like a light switch turned off.

I observed last night with the 20-inch.  The seeing was predicted to be better, but it wasn't, so for most of the session I used the 8-inch mask.  Transparency was hurt by wildfire smoke which came up from southern California and puddled over the Bay Area.  A lot of easy pairs but toward 10:30pm I switched to full aperture with the apodising screen for a couple challenges.  Also the nearly full moon.  At the end of the night I had pretty fantastic views of the moon and Mars through binoviewers.  So it was a good night all the same.  And at least the tracking worked.  I can't observe without it now.

HEI 286 AB: 203; 205x: B is very faint, averted vision only and very close, but able to see it despite the moon and wildfire smoke in the air.
21H 32M 34.77S +13° 50' 14.6" P.A. 268 SEP 2.2 MAG 10.81,12.40

STF 3112 AB: 203; 205x: Light yellow-orange A and deeper dull orange B, wide, ~2 delta mag.  Physical. 
21H 34M 29.74S +09° 29' 58.9" P.A. 239 SEP 7.1 MAG 7.96,10.32 SP G0 DIST. 78.37 PC (255.64 L.Y.)

HJ 1661 AB: 203; 205x: Slight magnitude difference, wide, slightly yellow red.  Physical.
21H 35M 56.46S +26° 22' 10.6" P.A. 85 SEP 11.9 MAG 9.28,9.30 SP F8 DIST. 223.71 PC (729.74 L.Y.)

HJ 1668 AB: 203; 205x: ~1 delta mag, wide, slightly yellow-orange A
21H 37M 24.08S +23° 39' 30.0" P.A. 37 SEP 7.9 MAG 9.04,10.44 SP F8

STT 455 AB: 203; 205x: ~2 delta mag, wide white stars.  Physical
21H 56M 40.43S +16° 07' 25.3" P.A. 271 SEP 10 MAG 8.57,10.29 SP F8 DIST. 83.82 PC (273.42 L.Y.)
 
STF 2849 AB: 203; 205x: Very fine, ~2 delta, ~2".  A is blue-white and B is similar but much fainter, a very fine point. Nice. 
21H 57M 43.20S +20° 14' 29.9" P.A. 244 SEP 1.7 MAG 8.69,10.37 SP G5 DIST. 123 PC (401.23 L.Y.)

GCB 63 AB: 203; 205x: Not found.  Should have been able to see but did not.  Last observation was in 1970 and there have only been 3 observations. 
22H 04M 00.00S +24° 09' 00.0" P.A. 2 SEP 1.6 MAG 10.50,11.00

STF 2859 AB: 203; 205x: Pretty tough for tonight's poor transparency.  Faint, slight magnitude difference, ~4".  Brighter white pair on edge of field. 
22H 05M 58.84S +20° 36' 20.6" P.A. 344 SEP 3.8 MAG 10.01,10.65 SP G0

STF 2895 AB: 203; 205x: In a trail of three doubles across the field.  This is the middle pair, ~1 delta mag, wide.  To the south is a near equal and faint pair, to the north is the widest separation pair with a slight mag difference. 
22H 20M 44.74S +24° 57' 24.7" P.A. 49 SEP 14 MAG 8.49,9.95 SP K0III-IV DIST. 310.56 PC (1013.05 L.Y.)

CHE 439 AB: 203; 205x: B is wide and faint, seen with averted vision, ~2 delta mag. 
23H 22M 30.20S +41° 46' 03.2" P.A. 17 SEP 6.6 MAG 8.80,10.30 SP F2

STF 3010 BC: 203; 205x: Seen with averted vision and can then can hold.  It has nearly the same PA as the AB pair, so all three stars are in a line, though BC's separation is far tighter.  A very nice set, and surprisingly not physical.
23H 23M 30.68S +45° 47' 18.6" P.A. 125 SEP 11.9 MAG 9.50,12.50 SP K8 DIST. 43.78 PC (142.81 L.Y.)

STF 2987 AB: 203; 205x: Nice white and blue-white pair, ~3 delta mag, wide ~4" 
23H 10M 21.28S +49° 01' 06.0" P.A. 154 SEP 3.4 MAG 7.42,10.41 SP G1V DIST. 45.39 PC (148.06 L.Y.)

A 198 AB: 203; 333x: Hairline split at best moments, slight mag difference (more than the data suggests)
23H 13M 07.83S +46° 22' 13.0" P.A. 344 SEP 0.6 MAG 10.06,10.10 SP K0

BU 1221 AB: 508; 205x: B is faint and close, but still seen well, ~2", ~3 delta mag.  
23H 27M 59.12S +42° 25' 07.0" P.A. 147 SEP 2.1 MAG 9.94,11.30 SP A5 DIST. 1041.67 PC (3397.93 L.Y.)

A 109 AB: 508; 333x: Hairline split at 205x, but a better look and wider split with 333x.  It seems closer than the 0.9" in the data.  Noticeable delta mag, more than one tenth. 
23H 29M 04.80S +43° 23' 50.0" P.A. 312 SEP 0.9 MAG 10.12,10.36 SP A2

STF 3024 AB: 508; 205x: V389 And.  ~1 delta mag and ~5", slightly blue-white stars.  Physical.
23H 32M 01.31S +43° 49' 20.5" P.A. 309 SEP 4.9 MAG 8.63,9.35 SP A0 DIST. 381.68 PC (1245.04 L.Y.)

ES 110 AB: 508; 205x: A pretty triple, AB is close ~5" and ~1 delta mag, C is 3 times further and 90-degree difference in PA, about the same mag as B
23H 33M 37.33S +49° 19' 03.3" P.A. 36 SEP 5.3 MAG 10.16,11.20

COU 2672 AB: 508; 333x: Extremely fine hairline split at best moments, significant delta mag, very close. 
23H 35M 08.64S +49° 08' 03.7" P.A. 291 SEP 0.6 MAG 10.20,10.60

Thursday, October 22, 2020

21 october 2020

Last night's transparency started out poor, but in a reverse of normal circumstance improved a bit through the night.  Seeing was borderline average to good, and in the beginning I vacillated between full aperture & the 8-inch mask, until finally settling on full aperture with the apodising mask.  Observed until about 11:30pm, and some good pairs seen.

STT 463 AB: 508; 205x: Beautiful yellow A star and much fainter deeper yellow B, ~4", very attractive.  Physical
22H 10M 19.66S +13° 44' 56.9" P.A. 2 SEP 3.6 MAG 8.19,11.46 SP G0 DIST. 51.92 PC (169.36 L.Y.)

CHE 329 AB: 203; 205x: Faint pair, B seen with averted vision, ~5", very nice.  Physical 
22H 10M 56.02S +12° 03' 04.8" P.A. 87 SEP 4.9 MAG 11.49,12.70

BU 698 AB: 203; 205x: B seen with averted vision, and then I can barely hold it direct with foveal coaxing.  Widely separated and large delta mag.  Discovered with the 18.5-inch at 9.97".  Burnham called it "fixed," which it seems it is not after all.
22H 11M 54.70S +06° 53' 46.7" P.A. 338 SEP 10.7 MAG 7.18,11.80 SP A7IV DIST. 91.66 PC (298.99 L.Y.)

HDS 3150 AB: 508; 667x: Heavily notched snowman at both 667x & 1067x.  Light orange stars, significant mag difference.  It wants to split but won't with the seeing this night.
22H 12M 13.37S +08° 27' 38.0" P.A. 296 SEP 0.2 MAG 9.05,9.33 SP F8 DIST. 133.51 PC (435.51 L.Y.)

HU 978 AB: 203; 205x: Beautiful close split ~1", noticeable delta mag, light yellow A and light blue B.
22H 12M 45.31S +13° 54' 37.0" P.A. 205 SEP 1.2 MAG 9.12,9.58 SP G0

BU 699 AB: 203; 205x: B is very much fainter and just barely noticed with direct vision at both 205x & 333x, ~2", light orange A.  Burnham discovered with the 18.5-inch at 2.04"
22H 13M 44.35S +07° 42' 53.9" P.A. 183 SEP 2.3 MAG 7.90,12.00 SP K2 DIST. 298.51 PC (973.74 L.Y.)

HU 287 AB: 508; 333x: Seen at 205x but have a better view at 333x.  A is a brighter light yellow-white and B very faint, very close in, ~1" but seems closer due to the large delta mag.  Resolved with seeing.  Physical
22H 17M 06.55S +08° 22' 27.3" P.A. 80 SEP 1.3 MAG 7.73,11.24 SP F0 DIST. 153.61 PC (501.08 L.Y.)

A 628 AB: 508; 205x: Very fine but resolves nicely, B is a bit more than 1" separated, light yellow-white A and bluish B. 
22H 21M 11.35S +10° 53' 41.1" P.A. 223 SEP 1.2 MAG 8.64,11.60 SP K0

STF 2898 AB: 508; 205x: Easy wide one delta.  Physical.
22H 22M 17.81S +11° 04' 48.6" P.A. 283 SEP 12.6 MAG 9.13,10.36 SP F7V DIST. 56.02 PC (182.74 L.Y.)

HO 292 AB: 508; 205x: White A and ruddy B which is much fainter, wide.
22H 23M 15.11S +05° 38' 47.8" P.A. 65 SEP 3.9 MAG 7.66,11.24 SP A2 DIST. 141.04 PC (460.07 L.Y.)

STF 2901 AB: 508; 205x:  Ice blue A and yellow-orange B, ~2", very attractive pair
22H 24M 27.45S +03° 49' 05.8" P.A. 149 SEP 3.3 MAG 9.22,10.05 SP F0 DIST. 228.83 PC (746.44 L.Y.)

BU 291 AB: 508; 667x: Strongly notched overlapping disks, significant mag difference.
22H 27M 42.95S +04° 31' 24.6" P.A. 220 SEP 0.4 MAG 9.80,9.80 SP F8

COU 5 AB: 508; 333x: Very finely split at 205x, very definite with 333x.  White near equal stars
22H 28M 10.32S +09° 10' 06.2" P.A. 250 SEP 0.9 MAG 10.52,11.16 SP G0

STF 2925 AB: 508; 205x: Wide white stars, near equal
22H 37M 52.89S +05° 54' 25.8" P.A. 4 SEP 7.2 MAG 9.66,10.35 SP F5 DIST. 248.76 PC (811.46 L.Y.)

HO 296 AB: 508; 667x: Definite smaller point or appendage sprouting from A's disk, >1 delta mag, and more than subtle notching.  PA is to the north which matches the current position.   Physical with 20.83 year period, now at 0.362", it will close rapidly and likely be impossible to detect by 2023, then become detectable (at 0.3") by 2029.  One to keep an eye on.  
22H 40M 52.71S +14° 32' 57.5" P.A. 38.7 SEP 0.362 MAG 6.14,7.22 SP G4V DIST. 33.8 PC (110.26 L.Y.)



STF 2931 AB: 508; 205x: Dull orange-white A and light orange B, wide, almost 2 delta mag.  Physical
22H 41M 17.77S +13° 10' 31.2" P.A. 149 SEP 4.5 MAG 9.13,10.15 SP K0 DIST. 63.09 PC (205.8 L.Y.)

BU 480 AB: 508; 205x: Very finely split at 205x's small scale thirteen, ~1", half delta mag, nice pair
22H 41M 23.32S +04° 43' 21.3" P.A. 62 SEP 1.1 MAG 9.68,10.21 SP G0

BU 711 AB: 508; 205x: Very fine, ~1.5 delta mag, >1" separation, nice
22H 45M 27.86S +11° 11' 30.9" P.A. 349.2 SEP 2.65 MAG 10.25,11.43 SP K6V: DIST. 41.61 PC (135.73 L.Y.)

HO 482 AB: 508; 533x: !! Excellent split, white stars, slight magnitude difference, really good.  Physical with 383 year period
22H 51M 26.66S +26° 23' 27.9" P.A. 14.3 SEP 0.57 MAG 7.34,8.29 SP A9V DIST. 132.63 PC (432.64 L.Y.)

COU 239 AB: 508; 205x: ! Really excellent pair, faint but comfortably split, slight delta mag, very pretty
22H 51M 56.95S +22° 19' 21.0" P.A. 297 SEP 2.1 MAG 10.95,11.36 SP F5

Tuesday, October 20, 2020

good night with some short period pairs

I tried once more with my camera, and was able to live stack and see stars.  But the picture on the screen is very grainy and there is lag in the picture when slewing the scope.  Still could not take a capture.  Slow progress.  I notice in online forums others are using this camera for double star work, so it can be done -- I just need to learn how.

Seeing was very good but not spectacular.  Due to neighbor's lights I pointed to the north after the first few observations so my back would be to the lights.  There are plenty of pairs in Lacerta, Andromeda, and Cassiopeia, it's a very rich area.  Seeing was good enough to go after some interesting short period pairs.  Observed doubles from 9pm to 1am.  Some dew, a little chilly.  When I needed to slew more than a couple degrees after midnight I disengaged the drives and pushed the scope manually, so that I would only have a short, and quieter, slew to the target.  I used the Disable Tracking command in SkyTools to get a more accurate estimate of the PA on the short period pairs, it helps a lot.

HEI 296 AB: 508; 667x:  Hairline split at 533x, nice clean at 667x.  Light orange stars, with seeing, near equal.
22H 48M 42.32S +13° 49' 28.6" P.A. 9 SEP 0.2 MAG 10.70,10.70 SP F5

STF 2902 AB: 508; 205x: Bright orange-yellow stars, wide, noticeable delta mag. 
22H 23M 34.02S +45° 20' 59.9" P.A. 89 SEP 6.5 MAG 7.62,8.22 SP G5 DIST. 203.25 PC (663 L.Y.)

ES 1281 AB: 508; 205x: Blue-white A and B appears red-orange, ~2 delta mag, wide.  Not physical.
22H 24M 36.31S +47° 20' 19.6" P.A. 170 SEP 5.7 MAG 9.36,10.60 SP A0

BU 700 AB: 508; 205x: Blue-white A and ruddy B, very wide.  Not physical
22H 26M 27.78S +49° 41' 24.6" P.A. 333 SEP 10.2 MAG 8.64,12.40 SP A0

HO 184 AB: 508; 205x: Close pair, well separated ~2 delta mag.  There is a 10th mag C component which has a 11th mag 0.2" pair 
22H 26M 28.16S +43° 31' 38.8" P.A. 293 SEP 2.6 MAG 10.09,11.61 SP A0 DIST. 980.39 PC (3198.03 L.Y.)

ES 1467 AB: 508; 205x: A is a bright light orange.  B appears in my shifting vision as I scan about the field, a extremely faint point of light which fades away as soon as I notice it.  Well separated but still in A's glow.  Very fine. 7.23 delta mag!
22H 28M 03.51S +44° 07' 14.0" P.A. 229 SEP 9.3 MAG 6.77,14.00 SP M1III DIST. 319.49 PC (1042.18 L.Y.)

COU 2328 AB: 508: 667x: Attempted but not seen, the stars are too faint to resolve a close separation. 
22H 28M 25.41S +47° 29' 20.1" P.A. 152 SEP 0.7 MAG 10.92,11.33 SP G0

A 187 AB: 508; 333x: Light orange A is bright, B is blue and appears after foveal coaxing, ~2".  Challenging, with apodising mask 
22H 28M 29.33S +48° 32' 34.4" P.A. 127 SEP 2.3 MAG 8.05,11.61 SP K0 DIST. 505.05 PC (1647.47 L.Y.)

COU 2448 AB: 508; 533x: Hazy elongation only, stars are too faint to resolve well
22H 28M 40.73S +49° 43' 05.0" P.A. 37 SEP 0.8 MAG 10.90,11.33 SP A2

HO 295 AB: 508; 1067x: Very subtly notched elongation, can tell B from A.  Elongation suspected at 667x.  One field star another just out of view.  Short 30 year period, it will tighten rapidly and return to 0.3" in 2034. 
22H 38M 47.47S +44° 18' 49.9" P.A. 335.8 SEP 0.3 MAG 7.48,7.98 SP F9V+G5V DIST. 38.2 PC (124.61 L.Y.)


KR 60 AB: 508; 205x: DO Cep.  Easy pair, reddish B, lots of stars around including a near equal double to the WNW separated about 5".  KR 60 will make a quarter turn in its orbit by 2035.
22H 27M 59.20S +57° 41' 43.8" P.A. 229.7 SEP 1.73 MAG 9.93,11.41 SP M3.5+M4.5 DIST. 4 PC (13.05 L.Y.)

STT 12 AB: 508; 667x: Lam Cas.  Very bright, through the speckle pattern I can see elongation with subtle notch with B maybe to the west? [Correct!]  Two other stars in field.  Short period, 245 year period but it's whipping around A at the moment, 0.112" now, will make a quarter turn by 2037 but still be nearly the same impossible separation.
00H 31M 46.32S +54° 31' 20.3" P.A. 243.5 SEP 0.112" MAG 5.33,5.62 SP B8V+B9V DIST. 115.74 PC (377.54 L.Y.)



A 1512 AB: 508; 205x: B just comes into view with passing vision as I scan scanning about the field, not averted vision but more just moving my eye about.  I can hold it direct, very faint in A's bright light orange glow. Very nice 
00H 57M 33.41S +37° 03' 46.3" P.A. 328 SEP 6.8 MAG 8.72,13.70 SP F2 DIST. 146.2 PC (476.9 L.Y.)

A 925 AB: 533x: Attempted, but I could not see the B star, even when seeing is very good and A is a nice light orange round disk.  Should have been gettable at 1"  
00H 58M 41.44S +44° 57' 22.5" P.A. 109 SEP 1 MAG 7.77,10.41 SP G5 DIST. 187.97 PC (613.16 L.Y.)

COU 1505 AB: 508; 1067x: Elongation at 667x, a squat little snowman at 1067x.  White, slight mag difference
00H 59M 24.14S +40° 56' 31.9" P.A. 138 SEP 0.2 MAG 9.30,9.45 SP A0 DIST. 219.3 PC (715.36 L.Y.)

COU 1655 AB: 508; 333x: Very faint pair, nice and clean split with seeing, well separated with 333x, suspected at 205x, significant mag difference 
00H 59M 54.89S +42° 56' 48.8" P.A. 4 SEP 1.3 MAG 11.06,12.16

STF 79 AB: 508; 205x: 164 And.  Dual white headlights, slight mag difference.  Physical
01H 00M 03.56S +44° 42' 47.7" P.A. 195 SEP 7.9 MAG 6.04,6.77 SP B9.5V+A2V DIST. 119.05 PC (388.34 L.Y.)

COU 2255 AB: 508; 205x: Split clean with just 205x, very tight pair, noticeable magnitude difference, near to bright star.
01H 00M 15.51S +48° 01' 57.8" P.A. 13 SEP 0.8 MAG 11.02,11.58

MAD 1 AB:  Exceptionally fine split with 333x, obvious with 533x, getting really nice airy disks.  ~2 delta mag, <1", pale yellow A and very light green B.  Physical pair with a 925 year period. 
01H 00M 35.58S +47° 19' 14.6" P.A. 357.8 SEP 0.75 MAG 7.66,9.05 SP A2


COU 2256 AB: 508; 533x: Clean split with seeing, ~1 delta mag, A is white B is dull.
01H 01M 02.12S +48° 29' 34.3" P.A. 133 SEP 0.5 MAG 10.31,10.52 SP G0

ES 1492 AB: 508; 205x: Nice delicate pair, ~2 delta mag, well separated
01H 01M 38.99S +43° 57' 24.9" P.A. 73 SEP 3 MAG 9.83,12.20

STT 21 AB: 508; 333x: Nice pale yellow bright stars, ~2 delta mag, needed 333x clearly resolve, ~1".   Physical pair with 450 year period.
01H 03M 01.54S +47° 22' 34.1" P.A. 175.7 SEP 1.17 MAG 6.76,8.07 SP A9IV DIST. 96.06 PC (313.35 L.Y.)
 

A 1810 AB: 508; 205x: Attractive pair, ~3" and >1 delta mag 
01H 05M 11.36S +43° 54' 00.6" P.A. 182 SEP 3.1 MAG 9.66,10.55 SP G5

CHR 6 Aa-Ab: 508; 1067x:  This is a component of Iota Cas, STF 262 (which is a really pretty triple).  CHR 6 at 1067x and seeing through the speckle image, I get elongation with a suspected blunter end which I assume is the B side, PA to the north [it's actually to the south -- my general orientation is correct but mis-interpret the brighter end].  Physical with 47 year period, currently at periastron and will tighten to 0.2" by 2036.  
02H 29M 03.96S +67° 24' 08.7" P.A. 20 SEP 0.66 MAG 4.63,8.48 SP A5PSR DIST. 40.73 PC (132.86 L.Y.)



COU 1657 AB: 508; 533x: Attempted but no luck, the stars are too faint to resolve
01H 05M 20.90S +43° 40' 04.1" P.A. 265 SEP 0.4 MAG 10.80,10.80 SP A0

COU 1658 AB: 508; 205x: Very tight near equal pair, split even with 205x, near some brighter stars.
01H 07M 39.12S +44° 47' 07.3" P.A. 33 SEP 0.9 MAG 10.65,10.82

BU 397 AB: 508; 205x: AB is an easy pale gold A and blue B.  AC more difficult since C is much fainter, seen only with averted vision at twice the separation as B, and about forty degrees wider PA.
AB: 01H 07M 49.57S +46° 50' 31.6" P.A. 142 SEP 8.7 MAG 7.54,10.25 SP K0II-IIIP DIST. 172.71 PC (563.38 L.Y.).  AC: SEP 19.3 MAG 7.54,12.90 

ES 1360 AB: 508; 205x: Faint pair, significant delta mag. pretty close.
01H 08M 11.44S +45° 20' 40.7" P.A. 262 SEP 2.8 MAG 10.80,11.10

AC 13 AB: 508; 533x: ! AB is paired with a widely separated 11th magnitude C star forming HJ 2018.  A splits beautifully at 533x, ~0.5", nearly 2 delta mag.
01H 08M 53.15S +45° 12' 26.9" P.A. 265 SEP 0.6 MAG 8.05,9.50 SP A0V DIST. 298.51 PC (973.74 L.Y.)

A 932 AB: 508; 533x: Nice wide clean split at 533x, ~1", significant delta mag
01H 09M 23.31S +44° 53' 41.2" P.A. 333 SEP 0.9 MAG 9.53,10.61 SP F8

STT 515 AB: 508; 677x: Phi And. I get elongation in the speckle matter, but no better resolution.  Bright 0.52" pair 
01H 09M 30.12S +47° 14' 30.6" P.A. 114.6 SEP 0.52 MAG 4.59,5.61 SP B7VE DIST. 219.78 PC (716.92 L.Y.)

BU 398 AB: 508; 205x: Fine near equal white stars.  Burnham discovered with the 6-inch at 1.85"
01H 11M 52.40S +47° 47' 54.4" P.A. 44 SEP 1.8 MAG 9.31,9.38 SP A2 DIST. 201.61 PC (657.65 L.Y.)

STT 38 BC:  A component of STF 205, of which A is a brilliant orange and BC bright blue.  In BC I  can only see elongation through the speckle at 667x and 1067x.  Short 62.63 year period which will get "easier" to about 0.2" by 2045.
02H 03M 53.92S +42° 19' 47.5" P.A. 123.3 SEP 0.179" MAG 5.30,6.50 SP B8V+A0V DIST. 120.48 PC (393.01 L.Y.)

  

VYS 2 AB V547 Cas.  Faint, very fine pair, seen at 205x and had a better look at 333x.  Wide, ~4" slightly reddish faint stars.  SkyTools brought this up as a short period pair, however it won't make a significant change in my time.  It turns out A is also a pair, MCY 1 Aa-Ab, 10.8/12.5 0.5" with a period of only 15.59 years -- discovered by one D.W. McCarthy (no relation!) in 1989 during the first results of the Steward Observatory Infrared Speckle Camera using their 2.3 meter telescope.  The Ab star has a mass of only 0.18 of the sun.  I think it is gettable visually with the Challenger on a good transparent night, or with the Lick Great Refractor if I ever have the good fortune to observe with it.
00H 32M 29.43S +67° 14' 08.8" P.A. 185.5 SEP 3.69 MAG 10.62,12.20 SP DM2.5E DIST. 10.07 PC (32.85 L.Y.)