M31 - Our big neighbour (Dcolam)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 35 And · Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star 32 And · The star ν And

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M31 - Our big neighbour

Revision title: M31 in HaRGB

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M31 - Our big neighbour

Revision title: M31 in HaRGB

A friend of mine and me spend an evening in the Swiss Mountains about an hour from Zurich. It was decently dark and during the new moon phase which allowed us to collect about 4hours of unfiltered RGB images at f/2 with the mighty Samyang 135mm. My longterm project would be to add Ha and OIII-data using the Optolong L-Extreme once the clouds dissapear again. I was so happy to see the dust around Andromeda coming out during processing.

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Title: M31 in HaRGB

Description: I could collect about 4 hours of L-Extreme data and extract the H-Alpha from M31. By applying continuum subtraction from the H-Alpha data, I could add faint H-Alpha nebulae to the existing M31 RGB data. It is crazy to think that those red spots are 2.5 Million year old, intergalactic nebulae from a distant galaxy. I was also pleased to see that some background H-alpha popped out even though 4 hours at f/2 is still not enough integration.

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Trevinca Skies

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Status	Basic success
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Astrometry.net job	8854594
PixInsight job	n/a
PixInsight queue size	n/a
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M31 - Our big neighbour

Revision title: M31 in HaRGB

M31 - Our big neighbour

Revision title: M31 in HaRGB

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M31 - Our big neighbour

Revision title: M31 in HaRGB

M31 - Our big neighbour

Revision title: M31 in HaRGB

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