From Wikipedia: The Triangulum Galaxy is a spiral galaxy approximately 2.8 Mly from earth, appearing the constellation Triangulum. In very dark skies this galaxy can be visible with the naked eye. It is also one of the earlier discovered galaxies, discovered in 1654 by Giovanni Battista Hodierna, although it would be several hundred years before it was recognized as a galaxy.
Processing
Processing was with PixInsight utilizing the RC Astro plugins. I followed the SetiAstro tutorial for adding Ha data to a galaxy.
Technical Card
Mount: Celestron AVX
Camera(s): ZWO ASI 2600mc pro, ZWO ASI 120 mini guide camera
OTA: Apertura 60mm FPL-53 doublet with flattener
Filters: None, Baader Ha Filter
Exposure: 241 Lights @ 180 seconds, 150 Ha @ 180 seconds
Annotated Image
I was surprised to see that there are a surprisingly large number of additional faint galaxies, although very few of them were identifiable as such before the annotation. Additionally, several of the larger nebulae and globular clusters in M33 have there own catalog entries.
Sweetman Astrophotography 