As I was making my way through my past images, I came across one from 2017 that - rather oddly - I had not yet fully processed. This is a wide field photo of the Trifid Nebula (Messier 20). It is a perennial favourite of astrophotographers, and a relatively easy target for beginners to learn data gathering and post-processing. M20 is a stellar nursery located about five degrees west from Lambda Sagittarii and two degrees northwest of Messier 8 (Lagoon Nebula). It has the unusual characteristic of having several distinct components: reflection (blue), emission (pink), and dark (the 'lanes') nebulae, along with a prominent star cluster (NGC 6514).
Date: 02 May 2017
R.A.: 18h 00m 19.1s
Dec. -22° 48' 20.5"
Tamron 500mm f/8 catadioptric lens mounted on Canon 6D
22 subs @ 120s ea.; ISO 800