HSC 2305
0.16
UTI
0.0
CN
0.07
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
10.6 [arcmin]
- CN 0.0 Sparse
- Cdens 0.07 Very loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2305 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a metal-rich, very young cluster (see Parameters). It was recently reported in the literature.
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.
Relatively close
High extinction
Metal-rich
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 153.194 | -56.474 | 0.38 | -7.83 | 4.41 | 22.716 |
| Hunt & Reffert | 2024 | 153.082 | -56.483 | 0.378 | -7.801 | 4.385 | -50.895 |
| Cavallo et al. | 2024 | 153.346 | -56.498 | 0.379 | â | â | â |
| Hunt & Reffert | 2023 | 153.082 | -56.483 | 0.378 | -7.801 | 4.385 | -50.895 |
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 | 233* | â | â |
| Cavallo et al. | 2024 | 3.18 | 3.87 | â | 12 | 0.740 | â | â | â |
| Hunt & Reffert | 2023 | 2.42 | 4.21 | 2.64 | 5 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Bronze sample.