HSC 1131
0.06
UTI
0.0
CN
0.15
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
64.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.15 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1131 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (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.
Very close
Low 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 | 46.374 | 55.546 | 3.351 | 15.613 | -13.87 | -2.721 |
| Zhang et al. | 2024 | 45.18 | 56.37 | â | â | â | â |
| Cavallo et al. | 2024 | 43.892 | 55.83 | 3.351 | â | â | â |
| Hunt & Reffert | 2023 | 45.18 | 56.37 | 3.347 | 15.521 | -13.599 | -2.703 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | -0.032* | â | â | â |
| Cavallo et al. | 2024 | 0.31 | 0.91 | â | 102 | 0.380 | â | â | â |
| Hunt & Reffert | 2023 | 0.29 | 0.64 | 1.09 | 97 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.