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M29 in Cygnus



Scope: Megrez II (80 mm) f/5.9; Location: Dos Picos Park, Ramona, CA;  20 October 2008; Camera: Artemis285

Exposure: 8 x 10 min H-Alpha exposure (bin 1x1), 10 x 2 min exposure with Baader IR Block Filter (bin 1x1); 8 x 1 min RGB (bin 1x1)

Processing: Images were captured Artemis Capture (as FITs). Aligned/stacked and dark subtracted in Astroart with Sigma Combine. H-Alpha Luminance and Color channels were scaled and rough color balanced in Astroart.  Channels were co-registered in Astroart. The 2 minute IR block exposures were stacked and blended with the H-Alpha stack for the main luminance construction. The H-Alpha stack was blended with Red to form the Red channel. Level adjustments and curves were applied to bring out dimmer stars. LRGB combine was done in Photoshop. Alight noise reduction was performed on the H-Alpha background in PixInsight LE Final touches  applied in Photoshop.  Final Image size is approximately 1392x1040.

This image was guided; North is up.    M29 is an open cluster in the constellation of Cygnus. This region of our Milky Way galaxy contains a fair amount of interstellar matter including hydrogen. This gas has been stimulated to emission accounting for the faint red glow. This glow is capture in the extended H-Alpha filter exposures.M29 is approximately 4,000 to 7,000 light years distant from Earth. This image replaces an earlier image that can be seen in the Archives here. Horizontal FOV is 65'

Image Center is approximately - Equatorial 2000: RA: 20h 23m 54s Dec: +3832'00"


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

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