HSC 528
0.50
UTI
0.27
CN
1.0
Cdens
0.75
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
0.7 [arcmin]
- CN 0.27 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 528 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a large* distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~8.52 kpc) differs significantly from the median photometric distance (~6.55 kpc).
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Very distant
High extinction
Massive
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 | 297.708 | 30.208 | 0.117 | -2.536 | -4.704 | -40.481 |
| Hu & Soubiran | 2025 | 297.706 | 30.213 | â | â | â | â |
| Hunt & Reffert | 2024 | 297.705 | 30.211 | 0.104 | -2.531 | -4.704 | â |
| Cavallo et al. | 2024 | 297.706 | 30.213 | 0.106 | â | â | â |
| Hunt & Reffert | 2023 | 297.705 | 30.211 | 0.104 | -2.531 | -4.704 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.310* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 2656* | â | â |
| Cavallo et al. | 2024 | 4.74 | 2.86 | â | 1445 | 0.070 | â | â | â |
| Hunt & Reffert | 2023 | 8.36 | 3.30 | 0.67 | 507 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.