M 67 (NGC 2682, Lund 490) Open Cluster in Cancer

Located at: RA 08 hours 51 minutes 24 seconds, Dec +11 degrees 49 minutes 00 seconds

Size: 29' (25'); Magnitude: 6.9; 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:

Lumicon Deep Sky filter, 300 minutes (30 x 10 minute subs), 04/18/21/2008; seeing 2.0-3.3 FWHM per CCDStack
Processing:

CCDStack 1.3.2, 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 2682

NGC 2682 = M67 = Cr 204
08 51.4 +11 49
V = 6.9;  Size 30

17.5": at 140x about 200 stars mag 10-14 in a 15' diameter.  Includes several 
rich subgroups including one on the S edge near three brighter mag 10 stars.  
The brightest star mag 7.8 SAO 98178 is just off the NE edge. M67 is a well-
known old open cluster.

13" (12/24/84): about 100 stars mag 10-15 in 15' diameter, very rich and 
impressive cluster.

13" (3/24/84): beautiful at 88x with over 75 stars resolved at this 
magnification.

- by Steve Gottlieb