HSC 2151
0.13
UTI
0.0
CN
0.13
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
2.3 [arcmin]
- CN 0.0 Sparse
- Cdens 0.13 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2151 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a large* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~8.48 kpc) differs significantly from the median photometric distance (~6.04 kpc).
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
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.
Very distant
Moderate extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 131.175 | -47.689 | 0.118 | -3.142 | 3.479 | 75.33 |
| Hunt & Reffert | 2024 | 131.178 | -47.689 | 0.118 | -3.125 | 3.481 | 75.19 |
| Cavallo et al. | 2024 | 131.166 | -47.67 | 0.119 | â | â | â |
| Hunt & Reffert | 2023 | 131.178 | -47.689 | 0.118 | -3.125 | 3.481 | 75.19 |
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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 566* | â | â |
| Cavallo et al. | 2024 | 5.22 | 1.35 | â | 324 | 0.370 | â | â | â |
| Hunt & Reffert | 2023 | 6.85 | 2.02 | 0.88 | 34 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.