HSC 258
0.02
UTI
0.44
CN
0.76
Cdens
0.75
CC3
0.0
Clit
0.04
Cdup
Radius (P>50% members)
4.7 [arcmin]
- CN 0.44 Poorly populated
- Cdens 0.76 Dense
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 0.04 Very likely duplicate
Overview
HSC 258 is a poorly populated, dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
â ī¸ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.
Relatively close
High extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 278.423 | -4.931 | 0.402 | -0.558 | -2.383 | â |
| Hunt & Reffert | 2024 | 278.423 | -4.874 | 0.411 | -0.565 | -2.371 | â |
| Cavallo et al. | 2024 | 278.422 | -4.954 | 0.404 | â | â | â |
| Hunt & Reffert | 2023 | 278.423 | -4.874 | 0.411 | -0.565 | -2.371 | â |
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 | 634* | â | â |
| Cavallo et al. | 2024 | 3.05 | 3.27 | â | 32 | 0.360 | â | â | â |
| Hunt & Reffert | 2023 | 2.33 | 3.26 | 2.26 | 23 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Bronze sample.