FoF 939
(LP 0939)
0.18
UTI
0.62
CN
0.18
Cdens
0.38
CC3
0.0
Clit
0.78
Cdup
Radius (P>50% members)
6.4 [arcmin]
- CN 0.62 Moderately populated
- Cdens 0.18 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 0.78 Very likely unique
Overview
FoF 939 is a moderately populated, 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, young cluster (see Parameters). It is rarely studied in the literature.
(*): The parallax distance estimate (~4.85 kpc) differs significantly from the median photometric distance (~3.32 kpc).
Note: This is very likely a unique object, which shares a 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=0.78) 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
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 116.422 | -25.539 | 0.206 | -1.96 | 2.946 | 92.135 |
| Almeida et al. | 2025 | 116.449 | -25.502 | â | â | â | â |
| Dias et al. | 2021 | 116.449 | -25.502 | 0.233 | -1.933 | 2.886 | 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 | 3.32 | 1.21 | â | 28 | â | 1269 | â | â |
| Dias et al. | 2021 | 3.32 | 1.21 | â | 28 | -0.233 | â | â | â |
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.