HSC 1988
0.21
UTI
0.25
CN
0.42
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
8.8 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.42 Loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1988 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a low-mass, near-solar metallicity, intermediate-age 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
Low extinction
Low mass
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 115.56 | -32.063 | 0.738 | -5.385 | 5.521 | 14.478 |
| Hunt & Reffert | 2024 | 115.569 | -32.064 | 0.741 | -5.412 | 5.509 | 18.462 |
| Cavallo et al. | 2024 | 115.525 | -32.106 | 0.74 | â | â | â |
| Hunt & Reffert | 2023 | 115.569 | -32.064 | 0.741 | -5.412 | 5.509 | 18.462 |
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 | 47* | â | â |
| Cavallo et al. | 2024 | 1.31 | 0.59 | â | 178 | -0.090 | â | â | â |
| Hunt & Reffert | 2023 | 1.31 | 0.21 | 0.79 | 120 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.