M2 - Globular Cluster in Aquarius
From the author of Welcome to the Universe in 3D
Click here for Hertzsprung-Russell diagram.
22:17 EDT Oct 5, 2016
Starlight Express Trius-SX694 on 10" RC at f/9.
20-second unguided exposures.
R best 16, G best 16, B best 17 out of 21.
Log stretch, (mild) unsharp mask, color saturation boosted.