NGC 1220 (Lund 100, Cr 37) Open Cluster in Perseus

Located at: RA 03 hours 11 minutes 41 seconds, Dec +53 degrees 20 minutes 54 seconds

Size: 1.6' (2.0') Magnitude: 11.8 Class: I 1 p

North is up

West to the right


14.5" f5 Newtonian reflector


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


Lumicon Red filter, 470 minutes (47 x 10 minute subs), 11/17/18/19/2015; seeing 2.7-5.0 FWHM per CCDStack


CCDStack 2.90.5589.16047, Photoshop CS5.1


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


This November has been very frustrating, mostly very clear, but offshore winds (Santa Ana's) have made the seeing terrible. Used 47 out of 70 subs, tossing subs over 5 arc sec.

According to "Star Clusters", by Brent Archinal and Steven Hynes, the size of this open cluster is 2.0 arc minutes. See the 8" version.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 1220

NGC 1220 = Cr 37 = OCL-380 = Lund 100
03 11 41 +53 20.9
Size 2

17.5": very compact group of about a dozen faint stars mag 13.5-15 in a small 
1.5' wedge-shaped clump.  There is a very tight string of three strings at the 
NE end and the brightest mag 13 star is at the S end.  Does not appear fully 
resolved due to density and background haze.

8": faint open cluster, small, six faint stars are visible over unresolved haze.

- by Steve Gottlieb