Abell 85 (CTB-1)

Date image was taken: 8/21/2020

Image Title: BKinch - Abell 85 (CTB-1)

Image Description and Details : CTB is a supernova remnant (leftovers from an exploding star), similar to the famous Veil Nebula in Cygnus but much fainter. Its size in the sky is similar to the size of a full moon and it is approximately circular. Note, however, that its outer shell has ruptured between the 4 and 5 o'clock position. Originally this was thought to be a planetary nebula (which is why it appears as Abell 85 in his catalogue of planetaries) but in 1971 it was determined that it is actually a supernova remnant.

Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: PHD 2, Pleiades Astrophoto PixInsight , Astro Pixel Processor (for stacking), Sequence Generator Pro SGP (for capture)
Filters: Astrodon Ha, OIII, R, G & B
Accessories: Robofocus Focuser, ATIK EFW3

Original Resolution: 4426 x 3056
Dates: 27th Jul - 21st Aug '20

Frames:
Astrodon R 20 x 3'
Astrodon G 20 x 3'
Astrodon B 20 x 3'
Astrodon Ha 90 x 10'
Astrodon OIII 90 x 10'
​Total Time: 33 Hours

Copyright Information: B. Kinch