HSC 1271
0.20
UTI
0.0
CN
0.29
Cdens
0.12
CC3
0.3
Clit
1.0
Cdup
Stellar density (N50/rad)
1.4 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.29 Loose
- CC3 0.12 Very low quality
- Clit 0.3 Poorly 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 1271 is a sparse, loose object of very 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 near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 63.406 | 37.616 | 0.927 | -1.281 | -3.405 | -12.827 |
| Hu & Soubiran | 2025 | 63.3 | 37.696 | â | â | â | â |
| Zhang et al. | 2024 | 63.293 | 37.695 | â | â | â | â |
| Hunt & Reffert | 2024 | 63.293 | 37.695 | 0.971 | -1.219 | -3.481 | -11.071 |
| Cavallo et al. | 2024 | 63.3 | 37.696 | 0.97 | â | â | â |
| Hunt & Reffert | 2023 | 63.293 | 37.695 | 0.971 | -1.219 | -3.481 | -11.071 |
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 | 1.0 | 0.92 | 0.59 | 526 | -0.034 | 73 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.300(5) | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.034(1) | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 73(1) | â | â |
| Cavallo et al. | 2024 | 1.02 | 0.89 | â | 933 | 0.560 | â | â | â |
| Hunt & Reffert | 2023 | 0.98 | 0.95 | 0.59 | 120 | 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.