Wallpaper author:
Michelle Ashford
21 Oct 2022
NGC 7635
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star.
The Nebula is 7 light-years across – about one-and-a-half times the distance from our sun to its nearest stellar neighbour, Alpha Centauri – and resides 7,100 light-years from Earth.
Dataset from which the image was processed
NGC 7635
5 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 350.2013 Dec 61.20167
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................30 Dec 2020 - 13 Dec 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 640 | 2h40m | 15 |
| OIII | 560 | 2h20m | 15 |
| SII | 600 | 2h20m | 14 |