HSC 554
0.54
UTI
0.7
CN
1.0
Cdens
1.0
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
3.4 [arcmin]
- CN 0.7 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 554 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Distant
Moderate extinction
Massive
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 300.228 | 32.962 | 0.24 | -2.567 | -4.779 | 1.393 |
| Hunt & Reffert | 2024 | 300.24 | 32.945 | 0.24 | -2.569 | -4.781 | -24.867 |
| Cavallo et al. | 2024 | 300.226 | 32.971 | 0.24 | â | â | â |
| Hunt & Reffert | 2023 | 300.24 | 32.945 | 0.24 | -2.569 | -4.781 | -24.867 |
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 | 1385* | â | â |
| Cavallo et al. | 2024 | 3.30 | 2.52 | â | 32 | 0.120 | â | â | â |
| Hunt & Reffert | 2023 | 3.85 | 2.50 | 2.51 | 14 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.