Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  M 81  ·  NGC 3031
M81 - Ha only, Dagolaf
M81 - Ha only
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M81 - Ha only

M81 - Ha only, Dagolaf
M81 - Ha only
Powered byPixInsight

M81 - Ha only

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Description

As part of a full colored image I did some Ha shots. It turned out that my new Chroma 3nm Ha filter needs much longer exposures than I expected to get a decent amount of signal.
It turned out that 3x3 bin with 20 min subs are sufficient. I was not expecting that my setup can do 20 min subs unguided @ 2000 mm but it did very well.
Happy to show you this, not often shown, "Ha only" from a galaxy.

Btw this is my first light of my new ZWO ASI 6200MM Pro...

Thanks for watching!

PS: The full colored image will follow soon.

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