HSC 1789
0.32
UTI
0.0
CN
0.59
Cdens
0.5
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
1.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.59 Moderately dense
- CC3 0.5 Intermediate quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 1789 is a sparse, moderately dense object of intermediate C3 quality. Its parallax locates it at a large* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a 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 (~5.08 kpc) differs significantly from the median photometric distance (~3.71 kpc).
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Distant
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 | 110.085 | -12.137 | 0.197 | -0.946 | 0.636 | 111.348 |
| Hu & Soubiran | 2025 | 110.073 | -12.11 | â | â | â | â |
| Hunt & Reffert | 2024 | 110.082 | -12.129 | 0.194 | -0.911 | 0.659 | 99.163 |
| Cavallo et al. | 2024 | 110.073 | -12.11 | 0.193 | â | â | â |
| Hunt & Reffert | 2023 | 110.082 | -12.129 | 0.194 | -0.911 | 0.659 | 99.163 |
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 | -0.290* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 251* | â | â |
| Cavallo et al. | 2024 | 3.08 | 2.14 | â | 617 | -0.620 | â | â | â |
| Hunt & Reffert | 2023 | 4.34 | 1.40 | 1.94 | 538 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.