The Whirlpool Galaxy, M51, in a wide-field setting. This is an LRGB composite with a little bit of Ha admixture from a total of 22 hours of exposures taken at the Deep Sky West Observatory. Exposure: L 32 x 900sec, RGB (16,16,16) x 600sec, Ha 16 x 1800sec Date: 2016-04-10…2016-05-04 Setup: Takahashi FSQ106 EDXIII with […]