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

M31 Andromeda, Scott
M31 Andromeda
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M31 Andromeda

Equipment

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Acquisition details

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Description

I had not planned to image M31 again this season, but after installing a new motor focuser on my ED80 I wanted to try it out with the 1600MM and needed a target that was suitable and well positioned. Andromeda fit the bill and so I have now imaged it for the third year running. It's hard to tell but this is actually a 2 panel mosaic as M31 doesn't quite fit using a single frame using the ED80 reduced to f6.3 and the 1600MM. I shot 90 minutes on each panel, 40x45s Lum, and 10x120s RGB. I then downsampled all channels 2x2 to improve the SNR given the fairly short total exposure time. I tried for the most 'natural' color I could simply balancing the RGB in the histogram and boosting saturation a bit.

Comments

Sky plot

Sky plot

Histogram

M31 Andromeda, Scott

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Cloudy Nights