HSC 2237
0.22
UTI
0.0
CN
0.49
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
2.5 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.49 Loose
- CC3 0.62 Intermediate 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 2237 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age 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 | 134.237 | -58.0 | 3.998 | -17.519 | 14.089 | 12.402 |
| Cavallo et al. | 2024 | 133.899 | -57.937 | 4.025 | â | â | â |
| Hunt & Reffert | 2023 | 133.677 | -58.243 | 4.012 | -17.593 | 14.182 | 11.369 |
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 | 0.25 | 1.825 | 0.69 | 445 | -0.070 | â | â | â |
| Cavallo et al. | 2024 | 0.25 | 1.45 | â | 123 | -0.070 | â | â | â |
| Hunt & Reffert | 2023 | 0.25 | 2.20 | 0.69 | 767 | â | â | â | â |
Palma et al. (2025)
Classified as optical pair P37, along with HSC_2226.
Cavallo et al. (2024)
Bronze sample.
Hunt & Reffert (2024)
Classified as a moving group.