M81 - Bode

 Posted: Mar 20th, 2026
Show astrometry on hover
NGC
IC
HD
Technical Info
Telescope/Lens: Celestron EdgeHD 11
Camera: ZWO ASI2600MC DUO
Mount: EQ8
Software: NINA, Pixinsight
Exposure:
360 x 180" ISO/Gain: 100
Green, Bortle 4 zone:
 Irkutsk, Россия
18 h 0 m
373
Resolution: 5187x3458 px
Scale: 8561 KB
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Comments

Quite beautiful. But there's a feeling that the background wasn't fully processed, even though it's already grayish. It seems like the entire galaxy was stretched using a mask, but a "piece" at the bottom was forgotten. Or perhaps that's its true brightness. What do you say about this?
20 Mar, 2026 Reply
Stanislav Borodinov Replied to Oeswww
Thank you! I only used the mask for color saturation. At this level of integration, no details from the background are intruding. I wanted to pull out the IFN using an inverted mask, but it's still too noisy for now. Therefore, the background brightness is close to its natural state.
21 Mar, 2026 Reply
Hello, it worked out.
20 Mar, 2026 Reply
Stanislav Borodinov Replied to Buzzard
You're welcome.
21 Mar, 2026 Reply
Not specified, but I believe it was taken with a focal reducer.
31 Mar, 2026 Reply
Stanislav Borodinov Replied to Yas
Yes, correct, 0.7
1 Apr, 2026 Reply

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