M 36 (NGC 1960, Lund 191) Open Cluster in Auriga

Located at: RA 05 hours 36 minutes 18 seconds, Dec +34 degrees 08 minutes 24 seconds

Size: 12' (10') Magnitude: 6.0 Class: I 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, 230 minutes (23 x 10 minute subs), 12/17/2006

Processing:

 CCDStack 1.1, Photoshop 7.0

Location:

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

Notes:

This image replaces the unfiltered 60 minute Track & Accumulate image from December 2005. See the 14.5" version.

According to "Star Clusters", by Brent Archinal and Steven Hynes, the size of this open cluster is 10 arc minutes.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 1960

NGC 1960 = M36 = Cr 71
05 36 18 +34 08.5
V = 6.0;  Size 12

8": very bright, large, loose, includes two curving star lanes.  Double star 
?737 = 8.5/9.0 at 11" is near the center.

- by Steve Gottlieb