FoF 1980
(LP 1980)
0.17
UTI
0.38
CN
0.08
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
6.7 [arcmin]
- CN 0.38 Poorly populated
- Cdens 0.08 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
FoF 1980 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Distant
Low extinction
Massive
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 110.914 | -7.508 | 0.195 | -1.169 | 0.863 | 97.206 |
| Almeida et al. | 2025 | 110.903 | -7.51 | â | â | â | â |
| Dias et al. | 2021 | 110.903 | -7.51 | 0.23 | -1.196 | 0.844 | â |
đĄ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Almeida et al. | 2025 | 4.25 | 0.75 | â | 723 | â | 2024 | â | â |
| Dias et al. | 2021 | 4.25 | 0.75 | â | 723 | -0.118 | â | â | â |
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit.