8" f5 Newtonian reflector

 ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56

Lumicon Red filter, 450 minutes (45 x 10 minute subs), 03/5/8/2011; seeing 2.2-4.8 FWHM per CCDStack

CCDStack 2.19.4070.268047, Photoshop 7.0

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

This image is a re-shoot of a 03/2007 red-filtered 100 minute exposure ... had a hazy, moon lit sky, and some poor seeing for this image.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 2311

NGC 2311 = Cr 123 = OCL-553 = Lund 276
06 57 48 -04 36.7
Size 7

17.5": three dozen stars mag 11-15 in 5'x2' region elongated ~N-S.  Fairly rich 
though no dense spots.  Most stars form a thin isosceles triangle with the 
vertex star mag 13 at the N end, although the brightest star is a wide double 2' 
ESE of the vertex.  From the base of the triangle a stream heads SE and then E 
from the cluster mixing with some brighter field stars.  The cluster includes a 
few close faint double stars.

- by Steve Gottlieb