Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: The Thing on Jan 22, 2023, 20:55:55

Title: M81, M82 and Stuff, 21 Jan 2023, Manche, France
Post by: The Thing on Jan 22, 2023, 20:55:55
79*240s = 5.25 hours. Gain 120, Offset 4, Temperature -5C

Telescope aperture and focal ratio:   TS1506UNC, TSGPU Coma Corrector, f4 Fl 607mm
Camera and filters used:   ZWO ASI294MC Pro, Svbony UV/IR
Processing applied:   Pixinsight, Affinity 2.0

Full version here 3946x2774 12Mb
(http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/normal_M81M82_ABE_asinh.jpg) (http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/M81M82_ABE_asinh.jpg)
Title: Re: M81, M82 and Stuff, 21 Jan 2023, Manche, France
Post by: Carole on Jan 23, 2023, 11:42:42
Some nice colour there Duncan, and the IFN is starting to show especially in the larger version.

Well done.
Title: Re: M81, M82 and Stuff, 21 Jan 2023, Manche, France
Post by: The Thing on Jan 23, 2023, 12:20:54
Quote from: Carole on Jan 23, 2023, 11:42:42Some nice colour there Duncan, and the IFN is starting to show especially in the larger version.

Well done.

Thanks Carole.

There is quite a lot of IFN in the data but bringing it out messes up the galaxies even more. I need to use Starnet to split the two really. Or learn how to apply masks (used to know but I haven't used them in ages).
Title: Re: M81, M82 and Stuff, 21 Jan 2023, Manche, France
Post by: MarkS on Jan 23, 2023, 12:22:30
Beautiful image!

Helmholtx IX is also showing nicely and (correctly) appears blue. I agree with Carol that the colour overall is excellent.

Title: Re: M81, M82 and Stuff, 21 Jan 2023, Manche, France
Post by: Hugh on Jan 23, 2023, 12:27:56
Oh - that is nice!

- Hugh
Title: Re: M81, M82 and Stuff, 21 Jan 2023, Manche, France
Post by: Roberto on Jan 23, 2023, 13:19:54
Very nice and delicate Duncan! 👍

Roberto
Title: Re: M81, M82 and Stuff, 21 Jan 2023, Manche, France
Post by: JohnH on Jan 23, 2023, 16:38:47
Really nice!

John
Title: Re: M81, M82 and Stuff, 21 Jan 2023, Manche, France
Post by: The Thing on Jan 24, 2023, 14:36:37
Thanks everyone. As you can surmise, there has been a few clear nights. :D