HSC 1273
0.17
UTI
0.0
CN
0.2
Cdens
0.12
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
5.6 [arcmin]
- CN 0.0 Sparse
- Cdens 0.2 Very loose
- CC3 0.12 Very low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 1273 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, well below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very old 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
Low extinction
Near-solar metallicity
Very old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 60.141 | 34.775 | 0.366 | 0.486 | -1.555 | -14.198 |
| Hu & Soubiran | 2025 | 60.092 | 34.77 | â | â | â | â |
| Hunt & Reffert | 2024 | 60.203 | 34.722 | 0.361 | 0.429 | -1.494 | -4.939 |
| Cavallo et al. | 2024 | 60.092 | 34.77 | 0.36 | â | â | â |
| Hunt & Reffert | 2023 | 60.203 | 34.722 | 0.361 | 0.429 | -1.494 | -4.939 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.300* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 122* | â | â |
| Cavallo et al. | 2024 | 2.73 | 0.78 | â | 7943 | -0.480 | â | â | â |
| Hunt & Reffert | 2023 | 2.38 | 0.35 | 1.35 | 5585 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.