Thank you for sharing your photos - this is exactly what this project is all about! :-)
It never rises higher than 15 degrees above the horizon at the latitude of Adygea, so I captured it over several nights. A barred spiral galaxy with intense star formation, located in the constellation Hydra. Distance is about 15 million light-years. Diameter is 115,000 light-years. Angular size is 12.9' x 11.5'.
It never rises higher than 15 degrees above the horizon at the latitude of Adygea, so I captured it over several nights. A barred spiral galaxy with intense sta…
How do you stack? As a single sequence, or with pre-calibration of each exposure and then stacking them all together? And how will you add Ha, using what formula?
I stack RGB separately, and Ha separately as well. Then I subtract Ha from R using pixel math in Siril. Here is a very detailed video on how to do this in Siril:
https://www.youtube.com/watch?v=6QQlwel2dAU&t=377s
Comments
Regarding Ha – do you do the color calibration before adding Ha to RGB or after?
Photometric calibration was done after adding it.
But this is just a regular photo, by the way.
Just RGB, no Ha data yet((
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