HSC 2946
0.20
UTI
0.31
CN
0.2
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
6.7 [arcmin]
- CN 0.31 Poorly populated
- Cdens 0.2 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2946 is a poorly populated, very 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, very metal-poor, 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.
Distant
High extinction
Massive
Very metal-poor
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 263.988 | -32.609 | 0.352 | -0.27 | -0.837 | 4.631 |
| Hunt & Reffert | 2024 | 264.004 | -32.629 | 0.353 | -0.28 | -0.87 | 1.608 |
| Cavallo et al. | 2024 | 264.023 | -32.63 | 0.353 | â | â | â |
| Hunt & Reffert | 2023 | 264.004 | -32.629 | 0.353 | -0.28 | -0.87 | 1.608 |
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 | 1215* | â | â |
| Cavallo et al. | 2024 | 4.59 | 5.09 | â | 26 | -1.070 | â | â | â |
| Hunt & Reffert | 2023 | 2.54 | 4.72 | 2.72 | 87 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Bronze sample.