FoF 1977
(LP 1977)
0.05
UTI
0.0
CN
0.15
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.1 [arcmin]
- CN 0.0 Sparse
- Cdens 0.15 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
FoF 1977 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate 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 | 108.762 | -2.067 | 0.217 | -1.05 | 0.664 | 49.959 |
| Almeida et al. | 2025 | 108.738 | -2.077 | â | â | â | â |
| Dias et al. | 2021 | 108.738 | -2.077 | 0.232 | -1.032 | 0.673 | 49.529 |
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 | 4.41 | 0.68 | â | 512 | â | 1594 | â | â |
| Dias et al. | 2021 | 4.41 | 0.68 | â | 512 | -0.105 | â | â | â |
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.