HSC 1981
0.00
UTI
0.75
CN
1.0
Cdens
1.0
CC3
0.0
Clit
0.0
Cdup
Radius (P>50% members)
1.9 [arcmin]
- CN 0.75 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 0.0 Very likely duplicate
Overview
HSC 1981 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate 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.
Distant
Moderate 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 | 118.952 | -29.473 | 0.262 | -2.629 | 2.935 | 78.743 |
| Hunt & Reffert | 2024 | 118.954 | -29.474 | 0.257 | -2.62 | 2.942 | 70.42 |
| Cavallo et al. | 2024 | 118.948 | -29.474 | 0.261 | â | â | â |
| Hunt & Reffert | 2023 | 118.954 | -29.474 | 0.257 | -2.62 | 2.942 | 70.42 |
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 | 920* | â | â |
| Cavallo et al. | 2024 | 3.24 | 2.14 | â | 20 | 0.050 | â | â | â |
| Hunt & Reffert | 2023 | 3.36 | 1.92 | 1.95 | 169 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.