22 Mar 2026
NGC 1851, a dense globular cluster in the constellation Columba located about 39,500 light-years away, is estimated to contain roughly 200,000 stars. It is a massive, old cluster (approx. 9.2 billion years) with a high concentration of stars in its core, and it is known to contain multiple stellar populations.
Key details about NGC 1851 include:
Star Count Estimate: Approximately 200,000 stars.
Diameter: The cluster itself has a diameter of about 130 light-years.
NGC 1851
9 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 600 | 3h30m | 21 |
| Red | 600 | 3h20m | 20 |
| Blue | 600 | 3h20m | 20 |
| Green | 600 | 3h20m | 20 |