OC 0315
0.53
UTI
0.31
CN
1.0
Cdens
0.62
CC3
0.35
Clit
1.0
Cdup
Stellar density (N50/rad)
5.6 [N/pc2]
- CN 0.31 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.62 Intermediate quality
- Clit 0.35 Poorly 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 0315 is a poorly populated, very dense object of intermediate 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, very young cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is poorly studied in the literature.
Note: This object shares a large percentage of members with a later 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 | 94.923 | 22.119 | 0.543 | 0.634 | -2.529 | 25.812 |
| Liu et al. | 2025 | 94.94 | 22.11 | 0.55 | 0.62 | -2.5 | 22.54 |
| Zhang et al. | 2024 | 94.936 | 22.115 | â | â | â | â |
| Hunt & Reffert | 2024 | 94.936 | 22.115 | 0.547 | 0.624 | -2.502 | 22.537 |
| Cavallo et al. | 2024 | 94.912 | 22.17 | 0.546 | â | â | â |
| Hunt & Reffert | 2023 | 94.936 | 22.115 | 0.547 | 0.624 | -2.502 | 22.537 |
| Hao et al. | 2022 | 94.924 | 22.1 | 0.542 | 0.577 | -2.55 | 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 | 1.605 | 1.78 | 8 | -0.150 | 296 | â | â |
| Liu et al. | 2025 | 3.55 | 0.55 | â | 7 | â | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.296(1) | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 296(1) | â | â |
| Cavallo et al. | 2024 | 1.74 | 1.55 | â | 6 | -0.150 | â | â | â |
| Hunt & Reffert | 2023 | 1.70 | 1.66 | 1.78 | 10 | â | â | â | â |
| Hao et al. | 2022 | â | 2.71 | â | 8 | 0.169 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 306 along with OC_0316, and of multiple system 53 along with HSC_1502 and OC_0316.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P65, along with OC_0316.
Cavallo et al. (2024)
Gold sample.