OC 0653
0.00
UTI
0.4
CN
1.0
Cdens
1.0
CC3
0.25
Clit
0.0
Cdup
Stellar density (N50/rad)
41.2 [N/pc2]
- CN 0.4 Poorly populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.25 Poorly studied
- Cdup 0.0 Very likely duplicate
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 0653 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.
â ī¸ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously 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 | 245.886 | -51.874 | 0.325 | -0.51 | -2.195 | -43.013 |
| Hunt & Reffert | 2024 | 245.878 | -51.872 | 0.325 | -0.517 | -2.213 | -35.438 |
| Cavallo et al. | 2024 | 245.881 | -51.87 | 0.325 | â | â | â |
| Hunt & Reffert | 2023 | 245.878 | -51.872 | 0.325 | -0.517 | -2.213 | -35.438 |
| Hao et al. | 2022 | 245.881 | -51.871 | 0.324 | -0.503 | -2.218 | -43.424 |
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 | 2.41 | 2.47 | 1.62 | 151 | -0.026 | 1211 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 1211(1) | â | â |
| Cavallo et al. | 2024 | 2.08 | 2.47 | â | 151 | -0.550 | â | â | â |
| Hunt & Reffert | 2023 | 2.74 | 1.64 | 1.62 | 182 | â | â | â | â |
| Hao et al. | 2022 | â | 3.89 | â | 100 | 0.498 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair (not dynamically associated) P149, along with HSC_2762.
Cavallo et al. (2024)
Gold sample.