| Designation(s) | NGC 6791 |
| Object Type(s) | Open Cluster |
| Relevant Catalog(s) | All (Chron), NGC |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Lyra |
| Date and Time Observed | 2025-09-02 23:00:00 |
| Instrument | Askar V 80mm w extender f7.5-600mm FL |
| Camera | ASI2600MC-Pro |
| Image Details | Transparency: Good. Seeing: Good. Total integration time was 20m. Exposures 20s@250g, L-eNhance Filter, SharpCap colour calibration. Dithered and recentered in SharpCap. No guiding. |
| Description | One of the oldest known open clusters, thought to be 8 billion years old. The main sequence stars, unlike old globular clusters, are metal rich. Also contains a significant population of white dwarves dated 6 billion years. |
| Catalog Links | |
