HSC 2040
0.39
UTI
0.31
CN
0.62
Cdens
0.5
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
1.4 [arcmin]
- CN 0.31 Poorly populated
- Cdens 0.62 Moderately dense
- CC3 0.5 Intermediate quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 2040 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a large* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~7.79 kpc) differs significantly from the median photometric distance (~5.39 kpc).
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Very 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 | 122.585 | -36.87 | 0.128 | -2.205 | 2.644 | 91.976 |
| Hu & Soubiran | 2025 | 122.567 | -36.872 | â | â | â | â |
| Hunt & Reffert | 2024 | 122.583 | -36.869 | 0.138 | -2.183 | 2.654 | 88.291 |
| Cavallo et al. | 2024 | 122.567 | -36.872 | 0.14 | â | â | â |
| Hunt & Reffert | 2023 | 122.583 | -36.869 | 0.138 | -2.183 | 2.654 | 88.291 |
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 | -0.200* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 530* | â | â |
| Cavallo et al. | 2024 | 4.99 | 2.13 | â | 851 | -0.190 | â | â | â |
| Hunt & Reffert | 2023 | 5.80 | 2.52 | 2.12 | 99 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.