The Pleiades open cluster

 Posted: Mar 21st, 2020
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NGC
IC
HD
Technical Info
Telescope/Lens: МС Юпитер 37А
Camera: Canon EOS550Da
Mount: SkyWatcher Star adventurer
Software: DeepSkyStacker, Fitstacker, Fitswork, Photoshop
Exposure:
39 x 120" ISO/Gain: 1600
Gray zoneLight Pollution:
 Nijniy Arhyz Astroferma Astroverty, Russia
1 h 18 m
2442
Resolution: 3500x2333 px
Scale: 1601 KB
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Comments

All stars have the same defects—"pips" at the top and right.
It’s worth being more careful when selecting frames for stacking and removing flawed ones.
21 Mar, 2020 Reply
Smirnov Andrey Replied to Smirnov Andrey
By the way, this applies to all of today's photos. It might not be a shooting defect, but an optical issue, such as pinching.
21 Mar, 2020 Reply
Strannick Replied to Smirnov Andrey
This is most likely due to the protective UV filter I foolishly attached to the lens. All photos taken with it had this issue.
21 Mar, 2020 Reply
Strannick Replied to Strannick
"which I foolishly put on the lens. All photos taken with it had this issue."
21 Mar, 2020 Reply

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