OC 0310
0.16
UTI
0.0
CN
0.21
Cdens
0.38
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
1.2 [pc], 1.0 [pc-2]
- CN 0.0 Sparse
- Cdens 0.21 Very loose
- CC3 0.38 Low quality
- Clit 0.1 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 0310 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.
Note: This object shares a moderate percentage of members with a later reported entry. See table with shared members information.
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 | 93.826 | 22.25 | 0.547 | 0.28 | -1.872 | â |
| Zhang et al. | 2024 | 93.828 | 22.268 | â | â | â | â |
| Hunt & Reffert | 2024 | 93.828 | 22.268 | 0.533 | 0.28 | -1.825 | â |
| Cavallo et al. | 2024 | 93.815 | 22.348 | 0.53 | â | â | â |
| Hunt & Reffert | 2023 | 93.828 | 22.268 | 0.533 | 0.28 | -1.825 | â |
| Hao et al. | 2022 | 93.808 | 22.259 | 0.549 | 0.27 | -1.889 | 36.162 |
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 | 1.88 | 1.93 | 0.71 | 21 | -0.141 | 148 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.141(1) | â | â | â |
| Hunt & Reffert | 2024 | 1.88 | 1.93 | 0.71 | 21 | â | 148(1) | â | â |
| Cavallo et al. | 2024 | 1.97 | 1.83 | â | 26 | -0.160 | â | â | â |
| Hunt & Reffert | 2023 | 1.88 | 1.93 | 0.71 | 21 | â | â | â | â |
| Hao et al. | 2022 | â | 2.69 | â | 16 | 0.119 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G226, along with Collinder_89, UBC_1305 and HSC_1502.
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).