14 october 2026, burnhams with the 6-inch

Seeing was ok but not quite superb.  Felt a bit tired so did not stay out long.

BU 2 AB: 152; 180x: Nice close pair, 1 Dm, lovely.  Suspected double at 125x, low better seen 180x. 8% PRO, 265 AU WS, 1.3+1.0 Msol, it is possibly binary and an orbit can be tried.

01h 10m 20.98s +29° 52' 09.5" P.A. 152.00 sep 2.1 mag 9.33,10.43 Sp F8

BU 4 AB: 152; 220x: Notched, unequal but not split.  SOC grade 4 orbit, 291-year period.

01h 21m 19.23s +11° 32' 12.3" P.A. 105.00 sep 0.6 mag 7.12,8.86 Sp F1III dist. 206.61 pc (673.96 l.y.)

BU 302 AB: 162; 175x: Overlapping disks, difficult, needs another observation -- this one more suited to the 20-inch.  SOC grade 4 orbit, it is nearing periastron, likely not resolvable in the 6-inch in my lifetime. 

00h 58m 18.89s +21° 24' 16.2" P.A. 231.00 sep 0.3 mag 6.60,8.77 Sp A2V dist. 129.7 pc (423.08 l.y.)

BU 303 AB: 152; 175x: Hairline split, unequal.  Lacks parallax data.  Given the closeness an orbit should be tried all the same.

01h 09m 39.15s +23° 47' 39.3" P.A. 294.00 sep 0.6 mag 7.32,7.56 Sp F0IV dist. 121.95 pc (397.8 l.y.)

BU 502 AB: 152; 175x: Extremely faint B on edge of detection, foveal coaxing and can then hold.  -31% PRO, it is not binary.

01h 08m 33.77s +15° 47' 24.7" P.A. 305.00 sep 3.3 mag 8.66,11.77 Sp K0 dist. 230.95 pc (753.36 l.y.)

BU 503 AB: 152; 240x: B fleetingly seen direct vision with seeing.  58% PRO, 495 AU WS, 1.5+0.6, but RVD 3.2 > EV 2.7, it is not binary.

01h 17m 13.67s +10° 35' 48.0" P.A. 138.00 sep 5.8 mag 7.98,12.00 Sp F5 dist. 85.69 pc (279.52 l.y.)

BU 504 AB: 152; 240x: B is well separated, but very faint.  -22% PRO it is not binary.

01h 17m 19.50s +01° 50' 28.6" P.A. 276.00 sep 1.7 mag 7.71,10.69 Sp K0 dist. 9090.91 pc (29654.55 l.y.)

BU 865 AB: 152; 240x: Amazingly tight and faint, B pops in and out. -36% it is not binary.

00h 45m 28.36s +43° 24' 03.3" P.A. 192.00 sep 1.3 mag 8.69,9.17 Sp A5 dist. 187.97 pc (613.16 l.y.)