Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  Dumbbell Nebula  ·  M 27  ·  NGC 6853
M27 - Dumbbell Nebula [Ha+OIII+RGB], jdifool
M27 - Dumbbell Nebula [Ha+OIII+RGB]
Powered byPixInsight

M27 - Dumbbell Nebula [Ha+OIII+RGB]

M27 - Dumbbell Nebula [Ha+OIII+RGB], jdifool
M27 - Dumbbell Nebula [Ha+OIII+RGB]
Powered byPixInsight

M27 - Dumbbell Nebula [Ha+OIII+RGB]

Equipment

Loading...

Acquisition details

Loading...

Description

Five years ago, on August 31, 2016, i posted my first image on Astrobin. To celebrate this anniversary i wanted to revisit the target from back then. To be ready to post a new version of Messier 27 on August 31, 2021 i started this project early on on July 17, 2021.

Needless to say that wheather wasn't cooperative and collecting the new data took way longer than expected. In addition i struggled a lot in processing the data, but eventually came up with a version, that i'm somewhat happy with.

This is a 2x drizzle integration and the image is cropped to zoom in on the nebula.
For the tonemap of the nebula i combined starless versions of Ha, OIII, R, G, and B data using the pixelmath expressions below. I applied an artifical luminance layer created from Ha + OIII and finally added RGB stars on top.

Pixelmath expressions for the nebula tonemap:
R: Ha + (R*1.25)
G: OIII + (G*1.25)
B: (OIII*1.25) + (B*1.35)

Comments

Sky plot

Sky plot

Histogram

M27 - Dumbbell Nebula [Ha+OIII+RGB], jdifool