Gum 1 (RCW 2), IC2177, vdB88, vdB90-95, Cederblad 90, Sh2-292-3, NGC2333, NGC2343; Monoceros
Astro-Physics 155EDF (155TCC) f/5.4 refractor
KAF-16803; FLI Proline
Total Exposure Time: 17.5+ hours; SII:Ha:OIII:R:G:B 340:320:340:18:18:18 minutes, unbinned
January 2009; RDO, Moorook, AU
Comments: This is my first attempt at narrowband imaging. This image is in the classic "Hubble palette" where SII is assigned to red, H-alpha to green, and OIII to blue. RGB frames were taken for star colors. Of note, although van den Bergh objects are by definition reflection nebulae, they may contain some emission components. These emission components are numbered in separate catalogs (such as Sharpless, RCW, Gum). The vdB objects listed here can not be seen in this image since this image was acquired using emission band filters and thus reflection nebulae are rejected. I list them only for completeness. You may see vdB 88, 90-95 in the RGB data used for the star color -- remember that this image is only a total of 54 minutes total exposure time. Still, many objects are seen. The two NGC objects are the two open clusters near the right lower portion of the image.