NGC7293 Helix (Ha + OIII)

 Posted: Aug 27th, 2025
Show astrometry on hover
NGC
IC
HD
Technical Info
Telescope/Lens: Askar SQA 106 мм f/4.8
Camera: ZWO ASI 294 MM
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:
30 x 300" ISO/Gain: 121 - zwo Ha 7nm bin2
15 x 300" ISO/Gain: 121 - zwo OIII 7nm bin2
15 x 300" ISO/Gain: 121 - zwo OIII 7nm bin2
Orange, Bortle 6 zone:
 Adygeya Stanica Dahovskaya, Russia
 Aug 23rd, 2025
5 h 0 m
958
Resolution: 1392x1001 px
Scale: 222 KB
Switched from LRGB to Ha+OIII.
It works great for this nebula.
Need to accumulate about six or seven more hours (hopefully in September).
Maybe not as good detail, in this mode the camera pixel size is 4.63 µm, but the plus is increased aperture and accordingly faster signal accumulation.
Current photo Updated
  27 Aug, 2025
  5 h 0 m
Switched from LRGB to Ha+OIII. It works great for this nebula. Need to accumulate about six or seven more hours (hopefully in September). Maybe not as good deta…
  21 Aug, 2025
  2 h 30 m
One of the closest planetary nebulae. Located at a distance of only 650 light-years. Diameter about 2.5 light-years. Angular size 12'x25'. Difficult to observe…
Show changes
Add comment

Comments

There are no comments on this picture yet

Comments are available only to registered users. Register or log in to leave a comment.