Wallpaper author:
Bernard Miller
22 May 2021
M55
This is an image of M55. It is a globular cluster about 17,000 light years away in the constellation Sagittarius. It is about 48 light years in diameter and contains about 269,000 solar masses.
Dataset from which the image was processed
M55
7 credit
- Type of target............................................................................................................................Globular Cluster
- Camera............................................................................................................................FLI ProLine PL9000
- Target coordinates............................................................................................................................RA 294.9988 Dec -30.9647
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................25 Sept 2019 - 09 Sept 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 265 | 1h55m | 26 |
| Red | 369 | 2h40m | 26 |
| Green | 276 | 1h55m | 25 |
| Blue | 288 | 2h | 25 |