2021-03-24 / Click on image to enlarge
galacticsights
astrophotography
NGC 2403
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 | 1140mm |
| Mount | iOptron CEM120 Center-Balanced Equatorial Mount |
| Autoguiding | MGEN-3 (Dithering) |
| Focuser | Moonlite |
| Planetarium Software | Stellarium | Image Session Control | APT - Astro Photography Tool v3.86, ASCOM Platform 6 |
| Lights | 71 x 120s (total 2h22'), ISO-1600, additional Biases, Flats, no Darks |
| Stacking Software | Pixinsight 1.8, Drizzle 2x |
| Image Processing | Pixinsight 1.8 |
NGC 2403 is an intermediate spiral galaxy in the constellation Camelopardalis. It is an outlying member of the M81 Group, approximately 8 million light-years distant from Earth and about 50,000 light-years across. The spiral galaxy contains huge star-forming HII regions, characterized by the telltale reddish glow of atomic hydrogen gas. The giant HII regions are energized by clusters of hot, massive stars that explode as bright supernovae at the end of their short and furious lives. NGC 2403 closely resembles another galaxy with an abundance of star forming regions that lies within our own local galaxy group, M33.