HSC 129
0.27
UTI
0.31
CN
0.34
Cdens
0.62
CC3
0.03
Clit
1.0
Cdup
Nm (P>50%)
31
Core radius and density
1.8 [pc], 1.7 [pc-2]
- CN 0.31 Poorly populated
- Cdens 0.34 Loose
- CC3 0.62 Intermediate quality
- Clit 0.03 Rarely studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
HSC 129 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 270.694 | -19.766 | 0.364 | 0.694 | -1.464 | 24.057 |
| Hunt & Reffert | 2024 | 270.683 | -19.761 | 0.355 | 0.712 | -1.418 | 24.058 |
| Cavallo et al. | 2024 | 270.676 | -19.765 | 0.357 | â | â | â |
| Hunt & Reffert | 2023 | 270.683 | -19.761 | 0.355 | 0.712 | -1.418 | 24.058 |
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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 2.51 | 4.83 | 2.65 | 106 | 0.080 | 1111 | â | â |
| Hunt & Reffert | 2024 | 2.51 | 4.83 | 2.65 | 106 | â | 1111(1) | â | â |
| Cavallo et al. | 2024 | 2.56 | 4.78 | â | 98 | 0.080 | â | â | â |
| Hunt & Reffert | 2023 | 2.51 | 4.83 | 2.65 | 106 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P419, along with UFMG_75.
Cavallo et al. (2024)
Silver sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.09 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.09 (50th percentile).