HSC 2985
0.23
UTI
0.4
CN
0.25
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
6.6 [arcmin]
- CN 0.4 Poorly populated
- Cdens 0.25 Loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2985 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 an extremely metal-poor, very young cluster (see Parameters). It was recently reported in the literature.
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
Extremely metal-poor
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 266.937 | -29.507 | 0.337 | -0.434 | -2.079 | -15.156 |
| Hunt & Reffert | 2024 | 266.958 | -29.536 | 0.342 | -0.431 | -2.084 | -7.722 |
| Cavallo et al. | 2024 | 266.947 | -29.501 | 0.341 | â | â | â |
| Hunt & Reffert | 2023 | 266.958 | -29.536 | 0.342 | -0.431 | -2.084 | -7.722 |
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 | 742* | â | â |
| Cavallo et al. | 2024 | 1.98 | 4.17 | â | 13 | -2.000 | â | â | â |
| Hunt & Reffert | 2023 | 2.69 | 3.24 | 2.46 | 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.