M101 RGB (OSC) (andrea tasselli)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5457 · NGC 5461 · NGC 5471 · NGC 5477

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M101 RGB (OSC)

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M101 RGB (OSC)

This my second iteration on this benchmark galaxy which is both wide and faint and hard to render (too many choices, too many variations). I confess that I consider this subject one of those that really bothers me a lot on how to display it, so even this rendering doesn't satisfy me 100% but so is the nature of the game. Note that many hours have been accrued with full moon (or close enough that makes no matter), something once I would have considered pure folly but that now I fully embrace. Given the much wider field than the previous iterations I had the possibility to show the very faint outer arms that were cut off in the older image, which is definitely a key plus of this image with respect the other one.

Original
B
Final
C

B

Description: Improved colour and background. Denoise applied.

Uploaded: ...

C

Description: Further revision with BXT applied and complete revision of contrast/colors

Uploaded: ...

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Status	Basic success
Started	...
Astrometry.net job	9726976
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M101 RGB (OSC)

M101 RGB (OSC)

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Image Index:

Contribution Index (beta):

M101 RGB (OSC)

M101 RGB (OSC)

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

In these public groups

In these collections

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