M81 (Adrenaline) - AstroBin

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · M 81 · NGC 3031

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M81

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M81

I rarely image galaxies but decided M81 was a good target to use whilst getting to grips with my new AZ-EQ6 mount. Despite a few communication issues with the ASIair-Pro I managed to get 24 x 300s of data with my ASI294MC. I actually took 36 x 300s but the first 12 had the wrong gain setting (139 instead of 120) so some new darks will be required before integrating those into the stack.

The stars still need some work but with guiding at less than 0.5" for the whole session I was pretty pleased with this 'trial" run.

Thanks for looking.

Original
B
C
Final
D

B

Description: Tidied up a few stars that slipped through the net.

Uploaded: ...

C

Description: An attempt to tame the core region.

Uploaded: ...

D

Description: Same OSC data but with added Lum (20 x 120s) and Ha (20 x 300s) to try to reveal more structure in the core and highlight the Ha rich regions in the arms. With the data I have I think I've gone as far as I can go.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	5541887
PixInsight job	NGCVW3BL1II7J9KR2QREEZ65322HCA7A
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h55m30s.782
RA (top/left)	09h49m41s.435
RA (top/right)	09h57m28s.389
RA (bottom/right)	10h01m20s.825
RA (bottom/left)	09h53m28s.880

Dec (center)	+69°04′17″.72
Dec (top/left)	+69°02′58″.47
Dec (top/right)	+68°34′54″.67
Dec (bottom/right)	+69°04′53″.62
Dec (bottom/left)	+69°33′37″.78

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M81

M81

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Image Index:

Contribution Index (beta):

M81

M81

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

Sky plot

Histogram

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