OC 0390
0.14
UTI
0.0
CN
0.06
Cdens
0.5
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
22
Core radius and density
3.0 [pc], 0.3 [pc-2]
- CN 0.0 Sparse
- Cdens 0.06 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.06 Rarely studied
- Cdup 1.0 Unique
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
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, but with a large variance across recent sources for the age parameter (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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.74 | 0.785 | 0.61 | 185 | -0.059 | 106 | â | â |
| Hunt & Reffert | 2024 | 1.74 | 0.70 | 0.61 | 185 | â | 106(1) | 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 | 1.06 | â | 316 | 0.022 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).