NGC 956 (Lund 80, Cr 27) Open Cluster in Andromeda

Located at: RA 02 hours 32 minutes 30 seconds, Dec +44 degrees 39 minutes 00 seconds

Size: 7.0' (9.0') Magnitude: 8.9 Class: IV 2 m

North is up

West to the right


14.5" f5 Newtonian reflector


 ST-8XME, self-guided, binned 1x1, temp -10c & -15c, camera control MaxIm DL 4.56


Lumicon Red filter, 570 minutes (57 x 10 minute subs), 10/25/28/30/31/2015; seeing 2.2-4.4 FWHM per CCDStack


CCDStack 2.90.5589.16047, Photoshop CS5.1


 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes: I have spent way too much time on this object ... I wanted to image a quick object at full moon time (no more than two nights), but ended up taking 118 subs on this one! The full moon shining into the tube ruined most of the first two nights, then very poor seeing (over 5 arc sec one night that I did not image) for the next several nights (off-shore winds). Used the 'best' 57 out of the 118 subs for this one.

According to "Star Clusters", by Brent Archinal and Steven Hynes, the size of this open cluster is 9.0 arc minutes. See the 8" version.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 956

NGC 0956 = Cr 27 = OCL-377 = Lund 80
02 32 31 +44 35.6
V = 8.9;  Size 8

17.5": 15 stars mag 12-14 and two mag 9 stars in a 5'x2' group, very elongated 
N-S.  The two mag 9 stars bracket the group at the N (mag 8.9 SAO 38098) and S 
ends.  Not rich but stands out reasonably well at low power as the stars form a 
rough curving "S" asterism.  Two additional mag 9/10 stars are 3' and 5' W of 
SAO 38098 but do not appear part of the cluster.

- by Steve Gottlieb