HSC 2234
0.10
UTI
0.0
CN
0.11
Cdens
0.25
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
24
Core radius and density
1.7 [pc], 0.6 [pc-2]
- CN 0.0 Sparse
- Cdens 0.11 Very loose
- CC3 0.25 Low quality
- Clit 0.06 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 2234 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age 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 | 144.735 | -51.913 | 0.971 | -9.589 | 6.237 | -35.706 |
| Hu & Soubiran | 2025 | 144.859 | -52.029 | â | â | â | â |
| Hunt & Reffert | 2024 | 144.738 | -52.0 | 0.979 | -9.587 | 6.2 | -6.842 |
| Cavallo et al. | 2024 | 144.859 | -52.029 | 0.98 | â | â | â |
| Hunt & Reffert | 2023 | 144.738 | -52.0 | 0.979 | -9.587 | 6.2 | -6.842 |
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 | 0.97 | 0.74 | 0.62 | 60 | -0.195 | 76 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.130(5) | â | â | â |
| Hunt & Reffert | 2024 | 0.97 | 0.74 | 0.62 | 60 | â | 76(1) | â | â |
| Cavallo et al. | 2024 | 1.00 | 1.13 | â | 2344 | -0.260 | â | â | â |
| Hunt & Reffert | 2023 | 0.97 | 0.74 | 0.62 | 60 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G144, along with UPK_549, HSC_2233 and HSC_2232.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.87 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.87 (50th percentile).