Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224  ·  The star νAnd
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M31 -  20211203 - Samyang 135 mm at F2 - Ha, altazastro
M31 -  20211203 - Samyang 135 mm at F2 - Ha
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M31 - 20211203 - Samyang 135 mm at F2 - Ha

Getting plate-solving status, please wait...
M31 -  20211203 - Samyang 135 mm at F2 - Ha, altazastro
M31 -  20211203 - Samyang 135 mm at F2 - Ha
Powered byPixInsight

M31 - 20211203 - Samyang 135 mm at F2 - Ha

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Description

Another take at a galaxy with a  H-alpha (semi)narrowband filter.
This time the galaxy is the queen of them all (as seen from Earth) and, also thanks to the camera lens fully open at F2, even in narrowband and without a long integration, it looks almost indistinguishable from its full visible spectrum version.
Stars are not perfect everywhere: there was an asymmetry somewhere along the axis of the optical path.

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M31 -  20211203 - Samyang 135 mm at F2 - Ha, altazastro