UPK 74
0.45
UTI
0.29
CN
0.84
Cdens
0.62
CC3
0.25
Clit
1.0
Cdup
Stellar density (N50/rad)
4.2 [N/pc2]
- CN 0.29 Poorly populated
- Cdens 0.84 Dense
- CC3 0.62 Intermediate quality
- Clit 0.25 Poorly 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
UPK 74 is a poorly populated, dense object of intermediate C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a low-mass, metal-poor, intermediate-age cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is poorly studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 295.19 | 22.466 | 1.752 | -0.078 | -3.44 | -26.155 |
| Hunt & Reffert | 2024 | 295.211 | 22.481 | 1.755 | -0.062 | -3.422 | -23.731 |
| Cavallo et al. | 2024 | 295.247 | 22.541 | 1.76 | â | â | â |
| Hunt & Reffert | 2023 | 295.211 | 22.481 | 1.755 | -0.062 | -3.422 | -23.731 |
| Sim et al. | 2019 | 295.222 | 22.456 | â | -0.11 | -3.33 | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 0.57 | 0.78 | 0.41 | 158 | -0.680 | 48 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 48(1) | â | â |
| Cavallo et al. | 2024 | 0.57 | 1.28 | â | 158 | -0.680 | â | â | â |
| Hunt & Reffert | 2023 | 0.54 | 0.28 | 0.41 | 168 | â | â | â | â |
| Sim et al. | 2019 | 0.57 | â | â | 89 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G259, along with XDOCC_9, ASCC_105 and UPK_82.
Cavallo et al. (2024)
Gold sample.