HSC 2161
0.12
UTI
0.26
CN
0.09
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.5 [N/pc2]
- CN 0.26 Poorly populated
- Cdens 0.09 Very loose
- CC3 0.25 Low quality
- Clit 0.0 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
HSC 2161 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate distance, well above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity 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 | 152.619 | -32.029 | 0.496 | -10.863 | 9.603 | 33.21 |
| Hu & Soubiran | 2025 | 152.645 | -32.22 | â | â | â | â |
| Cavallo et al. | 2024 | 152.645 | -32.22 | 0.488 | â | â | â |
| Hunt & Reffert | 2023 | 152.598 | -32.004 | 0.486 | -10.842 | 9.589 | 31.757 |
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 | 0.29 | 1.31 | 2950 | 0.065 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.130(5) | â | â | â |
| Cavallo et al. | 2024 | 1.81 | 0.24 | â | 3311 | 0.260 | â | â | â |
| Hunt & Reffert | 2023 | 1.95 | 0.34 | 1.31 | 2588 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.