HSC 975
0.13
UTI
0.0
CN
0.15
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.7 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.15 Very loose
- CC3 0.5 Intermediate 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 975 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
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 | 11.166 | 63.781 | 0.269 | 0.283 | -0.607 | -29.022 |
| Hunt & Reffert | 2024 | 11.162 | 63.805 | 0.279 | 0.268 | -0.612 | -30.361 |
| Cavallo et al. | 2024 | 11.075 | 63.78 | 0.28 | â | â | â |
| Hunt & Reffert | 2023 | 11.162 | 63.805 | 0.279 | 0.268 | -0.612 | -30.361 |
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 | 3.285 | 3.115 | 1.82 | 352 | -0.050 | 208 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 208(1) | â | â |
| Cavallo et al. | 2024 | 3.31 | 3.27 | â | 479 | -0.050 | â | â | â |
| Hunt & Reffert | 2023 | 3.26 | 2.96 | 1.82 | 225 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P384, along with Dolidze_13.
Cavallo et al. (2024)
Gold sample.