Astronomy | astro_images | Thor_HaO3RGB_web

NGC 2359, Thor's Helmet in Orion

12/14/2017, 1/13, 2/7, and 2/16/2018 with CDK 12.5" scope and QSI-640ws camera at f/5.2

Narrowband composite of HaO3RGB frames, 10.3 hours

Target info...