HSC 1253
0.06
UTI
0.0
CN
0.16
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
30.9 [arcmin]
- CN 0.0 Sparse
- Cdens 0.16 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1253 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old 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.
Close
Low extinction
Near-solar metallicity
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 68.458 | 44.933 | 1.773 | -1.986 | -4.121 | -7.523 |
| Hu & Soubiran | 2025 | 68.71 | 44.557 | â | â | â | â |
| Cavallo et al. | 2024 | 68.71 | 44.557 | 1.788 | â | â | â |
| Hunt & Reffert | 2023 | 68.383 | 45.27 | 1.798 | -1.981 | -4.045 | -18.12 |
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 | -0.200* | â | â | â |
| Cavallo et al. | 2024 | 0.56 | 0.91 | â | 1230 | 0.320 | â | â | â |
| Hunt & Reffert | 2023 | 0.53 | 0.66 | 0.68 | 1959 | 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.