Astrophoto of M33 (Triangulum Galaxy) LRVB by Elodie

M33 is a spiral galaxy belonging to the Local Group and located in the Triangulum constellation.

It is probably a satellite of the Andromeda galaxy. Its distance from the Sun is not well known.

It is the third most massive galaxy in the Local Group, after the Andromeda Galaxy and the Milky Way, and ahead of the Large Magellanic Cloud.

Captured here very quickly, I’m (as usual) not satisfied with the result. My Blue Layer had a major focusing problem, but I kept it anyway, not wanting to have to do it again (I’m not much of a galaxy person…).

Laying time

3h28 in all, under a slightly cloudy sky.

L 59x120s or 1h58

RGB 15x120s or 1h30

Total 3h28

Gear

72ed+corrector 0.85

Asi 1600mm pro+raf and zwo filters

Heq5 pro goto

Asiair pro

Self-guidance to finder+120mc-s

Treatment

Siril, Pixinsight, Photoshop