OC 0513
0.34
UTI
0.0
CN
1.0
Cdens
0.5
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
0.6 [pc], 9.2 [pc-2]
- CN 0.0 Sparse
- Cdens 1.0 Very dense
- CC3 0.5 Intermediate 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 0513 is a sparse, very dense object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near 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 rarely studied in the literature.
Note: This object shares a significant 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 | 142.723 | -51.42 | 0.532 | -5.621 | 4.055 | â |
| Liu et al. | 2025 | 142.71 | -51.42 | 0.53 | -5.57 | 4.05 | â |
| Hunt & Reffert | 2024 | 142.714 | -51.42 | 0.528 | -5.573 | 4.046 | â |
| Cavallo et al. | 2024 | 142.753 | -51.429 | 0.532 | â | â | â |
| Hunt & Reffert | 2023 | 142.714 | -51.42 | 0.528 | -5.573 | 4.046 | â |
| Hao et al. | 2022 | 142.72 | -51.422 | 0.537 | -5.603 | 4.072 | 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 | 1.79 | 2.41 | 1.585 | 5 | -0.092 | 267 | â | â |
| Liu et al. | 2025 | 3.31 | 0.79 | â | 30 | â | â | â | â |
| Hunt & Reffert | 2024 | 1.79 | 2.41 | 1.59 | 5 | â | 267(1) | â | â |
| Cavallo et al. | 2024 | 1.43 | 2.37 | â | 5 | -0.450 | â | â | â |
| Hunt & Reffert | 2023 | 1.79 | 2.41 | 1.58 | 5 | â | â | â | â |
| Hao et al. | 2022 | â | 3.75 | â | 5 | 0.265 | 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 tidal capture (resonant trapping binary) 104 along with CWNU_1300, and as tidal capture (resonant trapping binary) 328 along with PHOC_30, and of multiple system 38 along with PHOC_30 and CWNU_1300.
Palma et al. (2025)
Part of multiple system G41, along with CWNU_1768 and PHOC_30.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.84 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.84 (50th percentile).