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Andromeda Galaxy - M31


LARGE VIEW (4.8 arcsec/pixel 2028x1447 - 1.1 Meg) or FULL SIZE VIEW (2.1 arsec/pixel 4646x3314 - 4.7 Meg)

Scope: FSQ-106N 106 mm refractor at f/5, Location: Blair Valley, Anza Borrego Desert, CA  28  September 2013  Camera: ST8300M

Exposure:  (two panel mosaic) 12 x 8 min  (1x1 bin) exposure with UV/IR block, 8 x 3 min (2x2 bin) RGB exposures.

Processing: Data Collection -  CCDSoft (as FITs).  Calibrated, stacked (Sigma Combine), LRGB channel registration, central gradient removal, and color equalization - Astroart.   Curves, Levels, LRGB combine and finishing  - Photoshop.  Color calibration using eXcalibrator. This image is a LRGB combine with Luminance layering. Mosaic registration performed on Astroart - mosaic panel merge of aligned mosaic panels performed in Photoshop.  Final Image size is approximately 4646x3314.

North is to the right in this image.  M31 is a prominent member of the local galaxy group including our milky way and M33 Triangulum galaxy. M31 is the nearest large galaxy at a distance of about 2.9 million light years. This image also shows M110 and M32 smaller "satellite"  galaxies.  This image replaces an earlier image that can be seen in the Archives here.  Horizontal FOV is 162'

 Image center is approximately - Equatorial 2000:


All images and content remain the property of Jim Thommes - copyright 2003 - 2013

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