Kinch Posted 14 hours ago Share Posted 14 hours ago 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 7 and 8 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 telescope: Takahashi FSQ130ED Imaging camera: ASI 2600MM Mount: JTW Trident P75 Guiding telescope: Takahashi FS60CB Guiding camera: QHY 5 II Focal Extender / Reducer: None Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight. Filters: Astrodon Ha (3nm), OIII (3nm) and Astrodon R,G,B. Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius, RB Focus Excalibur. Dates: 14th - 17th Aug. 2024 Frames: (Total) Astrodon Ha 60 x 600" Astrodon OIII 60 x 600" Astrodon RGB 3 x 60 x 60" Total integration = 23 Hours 16 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now