Cresent Nebula (NGC6888)
A bi-colour image of the Cresent nebula with Ha mapped to Red and OIII mapped to Blue and Green. The OIII is very strong with this object to the point where it can overwhelm the Ha, reducing the redness, so I had to experiment with the relative contributions.
I was quite impressed by the amount of detail revealed by the Esprit 150, in particular, I like the "bubble wrap" appearance made by the OIII contribution. About 8.5 hours total integration time.
LIGHTS: 6 Ha, 11 OIII x 1800s, BIAS: 100, DARKS: 30, LIGHTS:40 all at -20C.
- 2
Recommended Comments
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