HSC 1255
0.15
UTI
0.0
CN
0.14
Cdens
0.12
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
17.9 [arcmin]
- CN 0.0 Sparse
- Cdens 0.14 Very loose
- CC3 0.12 Very low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 1255 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a relatively close distance, near 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.
Relatively close
Moderate extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 69.954 | 46.205 | 0.935 | -0.929 | -2.205 | -12.454 |
| Zhang et al. | 2024 | 69.983 | 46.112 | â | â | â | â |
| Hunt & Reffert | 2024 | 69.983 | 46.112 | 0.943 | -0.898 | -2.209 | -8.969 |
| Cavallo et al. | 2024 | 69.576 | 46.015 | 0.945 | â | â | â |
| Hunt & Reffert | 2023 | 69.983 | 46.112 | 0.943 | -0.898 | -2.209 | -8.969 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | -0.133* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 63* | â | â |
| Cavallo et al. | 2024 | 1.10 | 2.16 | â | 174 | 0.070 | â | â | â |
| Hunt & Reffert | 2023 | 1.00 | 2.00 | 2.58 | 116 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.