NGC7293 Helix (Ha + OIII)

 Posted: Nov 19th, 2025
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Technical Info
Telescope/Lens: Askar SQA 106 мм f/4.8
Camera: ZWO ASI 2600 MC
Mount: Ioptron HAE 29 C
Guide Scope: Askar 52 мм F4
Guide Camera: ZWO ASI 120 MM mini
Software: SharpCap 4.0, Siril, GraXpert, Adobe Photoshop
Exposure:
120 x 300" ISO/Gain: 100 - Askar D1 DUO (Oiii+Ha) 6 нм
Orange zoneLight Pollution:
 Adygeya Stanica Dahovskaya, Russia
 Nov 16th, 2025
10 h 0 m
150
Captured over several nights in November 2025.
Used the Siril HDR_multiscale script.
One of the closest planetary nebulae.
Located at a distance of about 650 light-years.
Diameter approximately 2.5 light-years.
Apparent size 12'x25'.
Difficult to observe at mid-latitudes in Russia.
Resolution: 2378x2079 px
Scale: 798 KB
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