M 34 (NGC 1039, Lund 91) Open Cluster in Perseus

Located at: RA 02 hours 42 minutes 08 seconds, Dec +42 degrees 45 minutes 00 seconds

Size: 35' (25') Magnitude: 5.2 Class: II 3 r

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56

Image:

Red (Hoya 25A) filter, 130 minutes (13 x 10 minute subs), 11/9/2006

Processing:

CCDStack 1.1, Photoshop 7.0

Location:

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

Notes: According to "Star Clusters", by Brent Archinal and Steven Hynes, the size of this open cluster is 25 arc minutes.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 1039

NGC 1039 = M34 = Cr 31
02 42.0 +42 47
V = 5.2;  Size 35

13.1": about 100 stars in a 30' diameter.  Very bright, very large, many double 
stars, three main curved lanes.  Includes a bright double star h1123 = 8.0/8.0 
at 20".  Naked-eye object in fairly dark sky.

- by Steve Gottlieb