M85 in Coma Berenices
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Scope: C8 f/6.2, Location: Del Mar, CA 18 April 2006 Camera: Artemis285
Exposure: 9 x 240 sec Luminance exposures with IR block, 7 x 120 sec (2x2 bin) RGB exposures.
Processing: Images were captured in Artemis Capture (as FITs). Aligned/stacked in Registax 3 and saved as FITS. Luminance and Color channels were numerically scaled and color balanced in Astroart. Channels were co-registered in Astroart. Central gradient was removed in Astroart. Curves and Levels applied in Photoshop to optimize object features. Final LRGB combine was done in Photoshop using Luminance Layering (or LLRGB). Since the image was stretched with a high background value from light pollution, some star repair was performed. Color balancing and final touches were done in Photoshop. SGBNR was used to smooth background noise on the luminance construction. Final Image size is approximately 1392x1040.
North is up in this image. The image was guided for all exposures. M85 is one of the members of the Virgo cluster and is located in the constellation of Coma Berenices. It is about 60 million light years distant from Earth and is a lenticular galaxy believed to consist of an old yellow star population. The object to the left in the image is NGC 4394 (10.9 magnitude). To the right is a smaller object - IC3292 ( 15.5 magnitude); just below is PGC 40512 (17.1 magnitude). Horizontal FOV is 24'
Image center is approximately - Equatorial 2000: RA: 12h 25m 24s Dec: +18°11'27"
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