Search found 3 matches

by Radcliffe
Tue Oct 23, 2018 8:41 am
Forum: Image Processing Troubleshooting
Topic: Odd results in a stacked Ha run
Replies: 5
Views: 4513

Re: Odd results in a stacked Ha run

Every day is a day in the classroom !

Is that L plus the narrowbands or just the three narrowband filters on their own ?

:thumbsup:
by Radcliffe
Mon Oct 22, 2018 8:36 am
Forum: Image Processing Troubleshooting
Topic: Odd results in a stacked Ha run
Replies: 5
Views: 4513

Re: Odd results in a stacked Ha run

Hi Ivo, I too doubt it is an ST issue and as I am still very much a beginner, making the odd mistake now and again. I am finding my way in this fascinating hobby. I'm glad you like it and you can have it for the Startools Christmas calendar. I agree it looks mathematical so maybe the algorithms are ...
by Radcliffe
Sat Oct 20, 2018 1:38 pm
Forum: Image Processing Troubleshooting
Topic: Odd results in a stacked Ha run
Replies: 5
Views: 4513

Odd results in a stacked Ha run

Hi all, I stacked a run of 10 x 1 min Ha exposures of the Ring Nebula and got quite an odd result. Hopefully a .jpg image is enclosed with this post. I used DSS in the normal way and got good results with LRGB exposures from the same session. Does anyone know what causes Ha to produce this result an...