Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
M31 Andromeda Galaxy, jfdegeorge
M31 Andromeda Galaxy
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M31 Andromeda Galaxy

M31 Andromeda Galaxy, jfdegeorge
M31 Andromeda Galaxy
Powered byPixInsight

M31 Andromeda Galaxy

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Description

RGB 16 panel mosaic, more or less natural color. I suppose everyone needs to have at least one image of the great Andromeda Galaxy. My humble rig has a small field of view, and to get the entire galaxy I needed to try a really large mosaic. I followed the Kayron Mercieca's excellent tutorial on the PixInsight mosaic processing at Light Vortex Astronomy. I learned to do some scripting in Pixinsight to automate many of the repetitive steps for creating the mosaic. This was very helpful because there were many attempts to work around problems with the data. Sky conditions have been generally difficult over the last year in my region of California, and I had many issues balancing the brightness and removing background gradients between the 16 panels. Hopefully the final image is pleasant to look at, even thought it is not perfect.

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M31 Andromeda Galaxy, jfdegeorge