HSC 1903
0.16
UTI
0.0
CN
0.06
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.3 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.06 Very loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
HSC 1903 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 116.168 | -21.887 | 0.301 | -2.19 | 2.954 | â |
| Hunt & Reffert | 2024 | 116.135 | -21.866 | 0.3 | -2.174 | 2.956 | â |
| Cavallo et al. | 2024 | 116.256 | -21.858 | 0.3 | â | â | â |
| Hunt & Reffert | 2023 | 116.135 | -21.866 | 0.3 | -2.174 | 2.956 | â |
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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 2.905 | 1.04 | 0.71 | 186 | 0.330 | 190 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 190(1) | â | â |
| Cavallo et al. | 2024 | 2.84 | 1.12 | â | 182 | 0.330 | â | â | â |
| Hunt & Reffert | 2023 | 2.97 | 0.96 | 0.71 | 190 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.