Pacman

 Posted: Aug 25th, 2026
Show astrometry on hover
NGC
IC
HD
Technical Info
Telescope/Lens: Laniakea 425mm f/2.9
Camera: ZWO ASI2600MM PRO
Mount: Skywatcher EQ8-R
Guide Scope: Skywatcher Evoguide 50ED
Guide Camera: ZWO ASI178MM
Software: Pixinsight 1.8
Accessories: Sharpstar 30085NTRD, Ivan7enych FW, ZWO EAF, ZWO Asiair
Exposure:
220 x 120" ISO/Gain: 100 - Antlia Highspeed 3nm Ha
220 x 120" ISO/Gain: 100 - Antlia Highspeed 3nm Oiii
220 x 120" ISO/Gain: 100 - Antlia Highspeed 3nm S2
30 x 60" ISO/Gain: 100 - Antlia V-Pro R
30 x 60" ISO/Gain: 100 - Antlia V-Pro G
30 x 60" ISO/Gain: 100 - Antlia V-Pro B
Green, Bortle 4 zone:
 Krasnodar, Russia
 Sep 15th, 2025
23 h 30 m
300
Resolution: 7166x5260 px
Scale: 39859 KB
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Comments

Congratulations on another excellent shot!
I'm curious about the resolution you achieve with your equipment - on average, under good seeing?
25 Aug, 2026 Reply
Sharky Replied to Ivanru
Thank you! The minimum was 1.2", but it's hard to say exactly whether the limit was seeing or equipment.
25 Aug, 2026 Reply
Ivanru Replied to Sharky
Wow... I thought the lower threshold would be significantly smaller.
And what methodology did you use for the measurement, could you please tell me?
P.S. Practical interest: in the process of refining my own solution for assessing FITS quality.
26 Aug, 2026 Reply
Sharky Replied to Ivanru
FWHM, as usual.
26 Aug, 2026 Reply
Sharky Replied to Ivanru
And where in Russia could it be less? In theory, somewhere up in the mountains of Arkhyz, sub-arcsecond seeing happens once or twice a year; on the plains or foothills, 1.5" is already quite good, and in the Moscow suburbs, even 2" is far from every night.
26 Aug, 2026 Reply
The colors are beautiful.
26 Aug, 2026 Reply
Sharky Replied to Neb
Mercy )
26 Aug, 2026 Reply
What palette is this? What combination was used to produce it?
4 Sep, 2026 Reply
Sharky Replied to Paradoxfm
HSOO, hydrogen in the L channel.
4 Sep, 2026 Reply

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