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M95 and M96 in Leo

 

CLICK ON IMAGE FOR FULL SIZE VIEW (4040x3030)

Scope: Explore Scientific MN152 at f/4.8, Location: DAA Observatory, Shelter Valley, CA,   18 March, 9, April 2021  Camera: ASI1600M (Astronomik Gen 2  LRGB Filters)

Exposure:  78 x 4 min(1x1 bin, gain 139) Luminance exposures, 16 x 3 min (1x1 bin, gain 139) each - RGB exposures.

Processing: Data Collection - Sequence Generator Pro (as FITs). Sub frame calibration - Pixinsight. Sub frame registration and integration (Average combine - Winsorized Sigma Clipping) - PixInsight. Non-linear stretching, normalization and gradient removal - PixInsight.  RGB combine, Luminance layering - PixInsight. Final finishing - Affinity Photo. RGB photometric calibration - PixInsight.  This image is a RGB combine with Luminance layering. Luminance channel was an integration of the Luminance exposures.  Images processed at 4656 x 3520 resolution. Final Image size is approximately 4040x3030.

North is up in this image. M95 and M96, a pair of galaxies in the constellation of Leo, are the two large galaxies in the image.  M95 (also known as NGC 3351, UGC 5850) is an SB(r)b galaxy with noticeable bar and ring; M96 (also known as NGC 3368, UGC 5882)  is an SAB(rs)ab galaxy. M95 and M96 are at a distance (redshift independent estimate) of 32 and 35 million light years respectively. All other galaxies in this field are background - at least an order of magnitude further distance.  There are a number of Quasars (one a quasar candidate) in this field - most with redshifts greater than 1.0 with light travel times (Lookback) ranging from 8 to almost 10 billion light years. These objects and some of the brighter stars are identified in the annotated image. This iamge replaces an earlier image in the archives here. Horizontal FOV is about 83'.  Full size image scale is 1.25 arcsec/pix.

Image center is approximately - Equatorial 2000: RA: 10h 45m 30s Dec: +11 30' 19" 

 

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