HSC 2874
0.17
UTI
0.29
CN
0.25
Cdens
0.5
CC3
0.0
Clit
0.83
Cdup
Radius (P>50% members)
6.5 [arcmin]
- CN 0.29 Poorly populated
- Cdens 0.25 Loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 0.83 Very likely unique
Overview
HSC 2874 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.
Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=0.83) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Relatively close
High extinction
Massive
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 259.085 | -39.339 | 0.392 | -0.472 | -1.423 | -43.017 |
| Hunt & Reffert | 2024 | 259.106 | -39.314 | 0.394 | -0.469 | -1.45 | 40.246 |
| Cavallo et al. | 2024 | 259.087 | -39.305 | 0.393 | â | â | â |
| Hunt & Reffert | 2023 | 259.106 | -39.314 | 0.394 | -0.469 | -1.45 | 40.246 |
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 | 1257* | â | â |
| Cavallo et al. | 2024 | 2.75 | 4.23 | â | 11 | 0.300 | â | â | â |
| Hunt & Reffert | 2023 | 2.41 | 4.43 | 2.04 | 11 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.