HSC 253
0.15
UTI
0.0
CN
0.13
Cdens
0.75
CC3
0.0
Clit
0.88
Cdup
Radius (P>50% members)
10.0 [arcmin]
- CN 0.0 Sparse
- Cdens 0.13 Very loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 0.88 Very likely unique
Overview
HSC 253 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, young cluster (see Parameters). It was recently reported in the literature.
Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=0.88) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Relatively close
Moderate extinction
Metal-rich
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 279.073 | -5.953 | 0.489 | -0.804 | -2.255 | â |
| Hunt & Reffert | 2024 | 279.098 | -6.0 | 0.499 | -0.801 | -2.223 | â |
| Cavallo et al. | 2024 | 279.137 | -5.988 | 0.499 | â | â | â |
| Hunt & Reffert | 2023 | 279.098 | -6.0 | 0.499 | -0.801 | -2.223 | â |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 163* | â | â |
| Cavallo et al. | 2024 | 2.33 | 2.94 | â | 34 | 0.500 | â | â | â |
| Hunt & Reffert | 2023 | 1.88 | 2.44 | 1.50 | 104 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.