HSC 2221
0.25
UTI
0.28
CN
0.2
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
2.8 [arcmin]
- CN 0.28 Poorly populated
- Cdens 0.2 Very loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2221 is a poorly populated, very loose object of high 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 (~6.44 kpc) differs significantly from the median photometric distance (~4.74 kpc).
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 | 137.542 | -53.668 | 0.155 | -3.264 | 2.625 | 38.3 |
| Hunt & Reffert | 2024 | 137.527 | -53.663 | 0.167 | -3.275 | 2.637 | 38.302 |
| Cavallo et al. | 2024 | 137.511 | -53.655 | 0.171 | â | â | â |
| Hunt & Reffert | 2023 | 137.527 | -53.663 | 0.167 | -3.275 | 2.637 | 38.302 |
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 | 241* | â | â |
| Cavallo et al. | 2024 | 4.43 | 1.13 | â | 479 | 0.100 | â | â | â |
| Hunt & Reffert | 2023 | 5.05 | 1.12 | 0.76 | 313 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.