NGC 4631 and NGC 4656, the "Whale" and the "Hockey Stick"

 Posted: Mar 12th, 2023
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NGC
IC
HD
Technical Info
Telescope/Lens: Sky-Watcher Quattro 8S
Camera: ToupTek IMX571
Mount: EQ6 Pro
Guide Scope: Искатель 50
Guide Camera: T7m
Software: NINA, GraXpert, Pixlnsight, ФШ
Accessories: Sharpstar 0.95x MPCC
Exposure:
90 x 120" ISO/Gain: 100 - OPTOLONG L-pro
Orange zoneLight Pollution:
 Ekaterinburg Rayon Ozera Gluhoe, Russia
 Mar 12th, 2023
3 h 0 m
1665
Finally, after 1.5 months, the sky cleared—and not just a milky haze, but a deep blue spring sky!
Color in the galaxies appeared right away.
Darks, flats, biases: 25 each.
Background correction with GraXpert—faster, easier, and better than PixInsight. I recommend it.
Resolution: 4248x3200 px
Scale: 475 KB
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Comments

Slightly to the right of the frame's center, among a group of bright stars—could that be a comet? Is there any proper motion between the first and last frame?
13 Mar, 2023 Reply

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