FoF 1984
(LP 1984)
0.08
UTI
0.0
CN
0.03
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
7.7 [arcmin]
- CN 0.0 Sparse
- Cdens 0.03 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
FoF 1984 is a sparse, very loose object of 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 | 109.209 | -5.907 | 0.215 | -0.954 | 0.587 | 81.331 |
| Almeida et al. | 2025 | 109.215 | -5.881 | â | â | â | â |
| Dias et al. | 2021 | 109.215 | -5.881 | 0.226 | -0.96 | 0.594 | 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 | 4.04 | 0.93 | â | 387 | â | 1546 | â | â |
| Dias et al. | 2021 | 4.04 | 0.93 | â | 387 | 0.003 | â | â | â |
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.