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M95, M96, M105 in Leo

 

 

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Scope: Zenithstar 66 mm APO at f/4.6; Location: Blair Valley, Anza Borrego Park, CA;  27 March, 2009; Camera: Canon XT 350D (Baader ACF modified)

Exposure: 17 x 5 min  (no filters) ISO 800, 8 Darks, no Flats 

Processing: Images were captured with DSLR Focus  and saved as RAW file format. Images were decoded and dark corrected in IRIS. Images were aligned and stacked in IRIS with Sigma Median.  Dark point equalization and rough color balance  were done in IRIS. Gamma adjustments also done in Iris. Gradient removal was done in IRIS. The exposure stack was saved as Tiff.  Final stretching and touch up was done in PhotoShop. Star repair was made in Photoshop on edge stars since they suffered a bit with the wide field optics.  Saturation was increased on the final image since the colors looked somewhat muted.  Final Image size is approximately 3474x2314.

North is up in this image.  This image is guided.  This is an image of a region in the constellation of Leo that includes M95, M96, and M105 galaxies. M105 is in the upper part of the image in a galaxy grouping of three. M105 is the rightmost of the three, NGC 3384 is the center and NGC 3389 is the leftmost. M96 is toward the center and M95 is more to the right. M95 and M96 are about 38 million light years distant from Earth as is M105 and NGC 3384. All of these galaxies are thought to be a grouping called the M96 group. NGC 3398 however is believed to be a background galaxy somewhat more distant.  The Horizontal FOV is about 4 deg, 8 min.

Image Center is approximately - Equatorial 2000: RA: 10h 47m 01.2s Dec: +1154'30"

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