FoF 1864
(LP 1864)
0.08
UTI
0.0
CN
0.05
Cdens
0.38
CC3
0.0
Clit
0.92
Cdup
Radius (P>50% members)
9.6 [arcmin]
- CN 0.0 Sparse
- Cdens 0.05 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 0.92 Very likely unique
Overview
FoF 1864 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, very young cluster (see Parameters). It is rarely studied in the literature.
Note: This is very likely a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=0.92) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Relatively close
Moderate extinction
Massive
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 8.704 | 63.036 | 0.349 | -2.915 | -0.557 | â |
| Almeida et al. | 2025 | 8.712 | 62.991 | â | â | â | â |
| Dias et al. | 2021 | 8.712 | 62.991 | 0.364 | -2.838 | -0.555 | 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 | 2.50 | 1.39 | â | 18 | â | 1035 | â | â |
| Dias et al. | 2021 | 2.50 | 1.39 | â | 18 | -0.101 | â | â | â |
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.