UBC 390
0.06
UTI
0.38
CN
0.12
Cdens
0.75
CC3
0.1
Clit
0.21
Cdup
Nm (P>50%)
38
Core radius and density
2.2 [pc], 0.6 [pc-2]
- CN 0.38 Poorly populated
- Cdens 0.12 Very loose
- CC3 0.75 High quality
- Clit 0.1 Rarely studied
- Cdup 0.21 Likely duplicate
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
UBC 390 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is rarely studied in the literature.
â ī¸ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 338.713 | 58.289 | 0.22 | -3.375 | -2.154 | -8.544 |
| Almeida et al. | 2025 | 338.696 | 58.27 | â | â | â | â |
| Dias et al. | 2021 | 338.696 | 58.27 | 0.209 | -3.355 | -2.173 | â |
| Cantat-Gaudin et al. | 2020 | 338.707 | 58.276 | 0.194 | -3.402 | -2.144 | â |
| Castro-Ginard et al. | 2020 | 338.707 | 58.261 | 0.197 | -3.373 | -2.156 | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 4.17 | 2.11 | â | 15 | -0.039 | 754 | â | â |
| Almeida et al. | 2025 | 4.17 | 2.11 | â | 8 | â | 754 | â | â |
| Dias et al. | 2021 | 4.17 | 2.11 | â | 8 | -0.039 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.89 | 1.58 | â | 83 | â | â | â | â |
| Kounkel et al. | 2020 | 4.26 | 2.17 | â | 22 | â | â | â | â |
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.