HSC 2148
0.14
UTI
0.0
CN
0.07
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
20
Core radius and density
2.2 [pc], 0.3 [pc-2]
- CN 0.0 Sparse
- Cdens 0.07 Very 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 2148 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster (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 | 136.453 | -44.499 | 1.091 | -5.84 | 5.189 | 14.156 |
| Cavallo et al. | 2024 | 136.53 | -44.646 | 1.071 | â | â | â |
| Hunt & Reffert | 2023 | 136.432 | -44.428 | 1.078 | -5.829 | 5.147 | 4.69 |
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 | 1.01 | 0.845 | 0.75 | 18 | 0.360 | â | â | â |
| Cavallo et al. | 2024 | 1.11 | 0.84 | â | 13 | 0.360 | â | â | â |
| Hunt & Reffert | 2023 | 0.91 | 0.85 | 0.75 | 23 | â | â | â | â |
Palma et al. (2025)
Part of multiple system G43, along with UPK_528, Theia_4456 and CWNU_182.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.92 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.92 (50th percentile).