HSC 1210
0.24
UTI
0.25
CN
0.19
Cdens
0.25
CC3
0.25
Clit
1.0
Cdup
Stellar density (N50/rad)
1.0 [N/pc2]
- CN 0.25 Poorly populated
- Cdens 0.19 Very loose
- CC3 0.25 Low quality
- Clit 0.25 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
HSC 1210 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It was recently reported 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 | 66.296 | 51.879 | 1.29 | 0.827 | -4.007 | -5.788 |
| Liu et al. | 2025 | 66.25 | 51.78 | 1.3 | 0.81 | -4.0 | 0.6 |
| Zhang et al. | 2024 | 66.252 | 51.784 | â | â | â | â |
| Cavallo et al. | 2024 | 66.656 | 51.919 | 1.298 | â | â | â |
| Hunt & Reffert | 2023 | 66.252 | 51.784 | 1.296 | 0.807 | -4.002 | 0.601 |
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 | 0.86 | 1.32 | 1.04 | 22 | -0.181 | â | â | â |
| Liu et al. | 2025 | 0.99 | 0.37 | â | 21 | â | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.132(1) | â | â | â |
| Cavallo et al. | 2024 | 0.86 | 1.78 | â | 32 | -0.230 | â | â | â |
| Hunt & Reffert | 2023 | 0.74 | 1.32 | 1.04 | 22 | â | 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 91 along with CWNU_1086, and as tidal capture (resonant trapping binary) 187 along with Theia_47, and of multiple system 31 along with Theia_47 and CWNU_1086.
Palma et al. (2025)
Part of multiple system G106, along with CWNU_1086, Theia_47, UPK_325, Theia_1083 and HSC_1205.
Cavallo et al. (2024)
Silver sample.
Hunt & Reffert (2024)
Classified as a moving group.