HSC 1555
0.19
UTI
0.62
CN
0.23
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
149.2 [arcmin]
- CN 0.62 Moderately populated
- Cdens 0.23 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1555 is a moderately populated, very loose object of very low C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low 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.
Very close
Low 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 | 130.611 | 24.345 | 5.466 | -17.445 | -21.176 | 21.766 |
| Zhang et al. | 2024 | 126.244 | 27.225 | â | â | â | â |
| Cavallo et al. | 2024 | 128.944 | 25.539 | 5.568 | â | â | â |
| Hunt & Reffert | 2023 | 126.244 | 27.225 | 5.596 | -17.025 | -21.206 | 23.634 |
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 | 0.117* | â | â | â |
| Cavallo et al. | 2024 | 0.18 | 0.39 | â | 148 | 0.170 | â | â | â |
| Hunt & Reffert | 2023 | 0.17 | 0.14 | 0.47 | 128 | 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.