2021-10-10 / Click on image to enlarge
Sh2-170, also known as Little Rosette Nebula, is a small emission nebula with an embedded cluster of stars
in the constellation Cassiopeia. It lies in the Perseus arm of our galaxy around 7.500 light-years distant.
At its centre is a small, young star cluster. The bright star at the centre of the nebula is ionizing the
surrounding hydrogen gas and causing the nebula to glow.
|Nikon DSLR D810A
|TS ONTC 12" f/4 Carbon Newton
|TS 2,5" Wynne Coma Corrector
|iOptron CEM120 Center-Balanced Equatorial Mount
|Image Session Control
|APT - Astro Photography Tool v3.88, ASCOM Platform 6
|97 x 120s (total 3h14'), ISO-1600, additional Biases, Flats, no Darks
|Pixinsight 1.8, Drizzle 2x