Wallpaper author:
Johan Potgieter
16 Jan 2023
NGC 1851
NGC 1851 (also known as Caldwell 73)[9] is a relatively massive[3] globular cluster located in the southern constellation of Columba. It has one of the highest concentrations known for Galactic globular clusters.[3] The stellar components shows two separate populations of subgiant stars, with the brighter branch being more concentrated in the outer regions of the cluster.[10] NGC 1851 is an estimated 9.2[6] billion years old with 551,000 times the mass of the Sun. (Wikipedia)
Dataset from which the image was processed
NGC 1851
9 credit
- Type of target............................................................................................................................Globular Cluster
- Camera............................................................................................................................FLI ProLine PL9000
- Target coordinates............................................................................................................................RA 78.5282 Dec -40.04656
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................10 Jan 2022 - 21 Nov 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 600 | 3h30m | 21 |
| Red | 600 | 3h20m | 20 |
| Blue | 600 | 3h20m | 20 |
| Green | 600 | 3h20m | 20 |