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LBN 477 in Andromeda




Scope: ES "Levy" MN152 Mak-Newt, 152 mm  at f/4.8,  Location: Laguna Mountains, CA   2 September 2011, Camera: ST8300M

Exposure: 14 x 9 minutes IR/UV Block (1x1 bin),  9:8:10 (R:G:B) x 4 minutes RGB Exposures (2x2) 

Processing: Images were captured with CCDSoft. Aligned/stacked and dark subtracted in Astroart ; Sigma Combine method was used for stacking subs.  All channels were scaled and rough color balanced in Astroart.  Central Gradient removal  was done in Astroart. Channels were co-registered in Astroart.   The 9 minute 1x1  exposures  were combined  for the main luminance construction . Level adjustments and curves were used to bring out object features.  LRGB combine was done in Photoshop.   A light background noise reduction was applied in Photoshop.    Final touches and color balance in Photoshop.  Final Image size is approximately 3352x2532 (resized to 2400x1800).

All exposures in this image were guided; North is up in this image. LBN 477is a cloud of gas and dust that is illuminated by the nearby Omicron Andromedae (not seen in this field - off to the upper right). Omicron Andromedae lies 692 light years distant from Earth. LBN 477  can be considered to be similar in distance. The Horizontal FOV is 88'.

Image center is located approximately - Equatorial 2000: RA: 23h 08m 33s Dec: +4150'19" 


All images and content remain the property of Jim Thommes - copyright 2003 - 2012

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