FoF 1798
(LP 1798)
0.09
UTI
0.0
CN
0.09
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
5.9 [arcmin]
- CN 0.0 Sparse
- Cdens 0.09 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
FoF 1798 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.
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
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 | 331.982 | 55.593 | 0.247 | -3.358 | -2.982 | -60.738 |
| Almeida et al. | 2025 | 331.931 | 55.618 | â | â | â | â |
| He et al. | 2023 | 331.835 | 55.646 | 0.188 | -3.253 | -2.735 | -67.26 |
| Dias et al. | 2021 | 331.931 | 55.618 | 0.248 | -3.345 | -2.965 | -65.721 |
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 | 3.27 | 1.89 | â | 12 | â | 1255 | â | â |
| He et al. | 2023 | 4.27 | 2.60 | â | 40 | â | â | â | â |
| Dias et al. | 2021 | 3.27 | 1.89 | â | 12 | -0.153 | â | â | â |
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit.