Messier M46- NGC2437 and NGC2438 - 3/12/2010
A cropping of a wider field containing M46, M47 and Comet Hartley 2 (see separate uncropped image). Skyglow showing in background. Being near the edge of the field of the original image and having no field flattener, stars to the bottom left in particular are elongated.
Star points created with electrical tape X in front of objective lens
DeepSkyStacker 3.3.2 Stacked 80% of 9 Images ISO 800 180 Sec, 10 DARK, 10 BIAS, 0 FLATS, Post-processed by Photoshop CS5
Telescope - Apogee OrthoStar LOMO 80/480 with Hotech SCA T-Adapter, Hutech IDAS LPS-P2 filter, Canon 400D DSLR, Ambient xxC (not recorded). Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Star Shoot Auto Guider.