OC 0390
0.23
UTI
0.0
CN
0.14
Cdens
0.5
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
10.2 [arcmin]
- CN 0.0 Sparse
- Cdens 0.14 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
OC 0390 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly 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.
Relatively close
Low extinction
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 | 112.783 | -13.668 | 0.533 | -1.186 | 0.242 | 26.972 |
| Hunt & Reffert | 2024 | 112.771 | -13.626 | 0.548 | -1.157 | 0.221 | 26.97 |
| Cavallo et al. | 2024 | 112.773 | -13.645 | 0.538 | â | â | â |
| Hunt & Reffert | 2023 | 112.771 | -13.626 | 0.548 | -1.157 | 0.221 | 26.97 |
| Hao et al. | 2022 | 112.773 | -13.664 | 0.534 | -1.273 | 0.272 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 106* | â | â |
| Cavallo et al. | 2024 | 1.76 | 0.87 | â | 89 | -0.140 | â | â | â |
| Hunt & Reffert | 2023 | 1.74 | 0.70 | 0.61 | 185 | â | â | â | â |
| Hao et al. | 2022 | â | 1.01 | â | 316 | 0.051 | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.