
30x 300s Ha, 30x 300s OIII, 15 mins RGB stars
Uncropped: https://www.astrobin.com/8marhw/D/
Stacked and processed in pixinsight with RC
Astro plug ins
Equipment: WO ultracat 108mm refractor, Askar 52 mm guide scope, asi120 mini guide camera, ZWO Automatic Focuser, Optolong 3nm narrowband filters, ZWO filter wheel
by SpencerBAstro

4 Comments
wow that is an amazing image, well done. love your setup
Awesome picture! Congratulation! I like details and good balance stars vs nebulosity.
Stunning
Cool photo. Always a great target
Fun fact on the Triangle.
It was actually discovered by Williamina Flemming who noticed it on photographic plates in 1904. (She worked for Pickering, who was a Director at Harvard at the time) She mentioned it as a Triangular wisp.
This is why most of the amateur astronomers I talk to have taken to calling it “Flemming’s Triangular Wisp” when referring to it these days.
A NASA Astronomy Photo Of the day also used this name: https://apod.nasa.gov/apod/ap210727.html