2021-10-10 / Click on image to enlarge
galacticsights
astrophotography
Sh2-170, Little Rosette Nebula
Technical Details
| Location | Zollikerberg, Switzerland |
| Camera | Nikon DSLR D810A |
| Telescope | TS ONTC 12" f/4 Carbon Newton |
| Optics | TS 2,5" Wynne Coma Corrector |
| Focal Length | 1113mm |
| Mount | iOptron CEM120 Center-Balanced Equatorial Mount |
| Autoguiding | MGEN-3 (Dithering) |
| Focuser | Moonlite |
| Planetarium Software | Stellarium | Image Session Control | APT - Astro Photography Tool v3.88, ASCOM Platform 6 |
| Lights | 97 x 120s (total 3h14'), ISO-1600, additional Biases, Flats, no Darks |
| Stacking Software | Pixinsight 1.8, Drizzle 2x |
| Image Processing | Pixinsight 1.8 |
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.