2020-04-23 / Click on image to enlarge
M3 or NGC 5272 is a globular cluster located in the constellation Canes Venatici, the Hunting Dogs.
It is one of the brightest, largest globular clusters in the sky and is about 33,900
light years away from Earth.
The cluster has an estimated total mass of about 450,000 solar masses and contains approximately
half a million stars.
|Camera||Nikon DSLR D810A|
|Telescope||TS ONTC 12" f/4 Carbon Newton|
|Optics||TS 2,5" Wynne Coma Corrector|
|Mount||iOptron CEM60 Center-Balanced Equatorial Mount|
|Planetarium Software||Stellarium||Image Session Control||APT - Astro Photography Tool v3.81, ASCOM Platform 6
|Lights||50 x 120s (total 1h40'), ISO-1600, additional Biases, Flats, no Darks|
|Stacking Software||Pixinsight 1.8, Drizzle 2x|
|Image Processing||Pixinsight 1.8|