HSC 637
0.17
UTI
0.0
CN
0.2
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
13.9 [arcmin]
- CN 0.0 Sparse
- Cdens 0.2 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 637 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close 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: 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
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 | 311.7 | 40.543 | 0.87 | 0.405 | -3.478 | -29.187 |
| Hunt & Reffert | 2024 | 311.773 | 40.584 | 0.88 | 0.363 | -3.49 | -29.188 |
| Cavallo et al. | 2024 | 311.561 | 40.568 | 0.878 | â | â | â |
| Hunt & Reffert | 2023 | 311.773 | 40.584 | 0.88 | 0.363 | -3.49 | -29.188 |
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 | 94* | â | â |
| Cavallo et al. | 2024 | 1.04 | 2.62 | â | 32 | -0.010 | â | â | â |
| Hunt & Reffert | 2023 | 1.11 | 2.20 | 1.64 | 60 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.