M109 in Ursa Major LRGB. (Pat Rodgers)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 109 · NGC 3992

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M109 in Ursa Major LRGB.

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M109 in Ursa Major LRGB.

The end of a three night clear spell so went back to an old favourite of mine Messier 109, the furthest object in the list, around 50MLY's distant. This galaxy is of similar size to our own and was the first galaxy I imaged back in 2013 with my Atik Titan camera. The fov on the Titan is a quarter of what the 314 has.

I added some old data from May 2017 to help reduce the noise.

Original
B
C
D
Final
E

B

Description: My 1st image of M109. I still remember the wow it gave me.

Uploaded: ...

C

Description: Image A and a super stretched LRGB as a 50/50 combination in PI. Galaxy is shown better but so is the noisy background.

Uploaded: ...

D

Description: Added 20x600s subs from last nights. This image is just the 2018 data.
RGB: 90mins each
Lum: 180 minutes
Again a blend of a stretched image and an under processed one.

Uploaded: ...

E

Description: Nov 2018 re-process

Uploaded: ...

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Status	Basic success
Started	...
Astrometry.net job	2052992
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M109 in Ursa Major LRGB.

M109 in Ursa Major LRGB.

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Contribution Index (beta):

M109 in Ursa Major LRGB.

M109 in Ursa Major LRGB.

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Description

Comments

Revisions

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C

D

E

Sky plot

Histogram

In these public groups

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