UPK 167

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0.66 UTI
0.58
CN
0.65
Cdens
0.75
CC3
0.65
Clit
1.0
Cdup
C3 classification BA
Number of members (P>50%) 66
Radius (P>50% members) 28.6 [arcmin]
  • CN 0.58 Moderately populated
  • Cdens 0.65 Moderately dense
  • CC3 0.75 High quality
  • Clit 0.65 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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UPK 167 is a moderately populated, moderately dense object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low 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 is moderately studied in the literature.
Close Low extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UPK 167 in: SciX Simbad
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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 336.904 49.792 1.842 1.582 -0.126 -11.345
Li et al. 2025 337.143 49.814 1.82 1.549 -0.029 –
Almeida et al. 2025 337.324 49.895 – – – –
Alfonso et al. 2024 336.948 49.92 1.777 1.56 -0.143 –
Hunt & Reffert 2024 336.662 49.516 1.796 1.54 -0.138 -12.724
Cavallo et al. 2024 337.145 49.933 1.802 – – –
Hunt & Reffert 2023 336.662 49.516 1.796 1.54 -0.138 -12.724
Tarricq et al. 2022 336.479 49.774 1.858 1.585 -0.157 –
Dias et al. 2021 337.324 49.895 1.803 1.584 -0.003 -15.903
Cantat-Gaudin et al. 2020 337.143 49.814 1.82 1.549 -0.029 –
Cantat-Gaudin & Anders 2020 337.163 49.811 1.801 1.556 -0.013 –
Sim et al. 2019 336.909 49.758 – 1.56 -0.09 –

💡 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
Li et al. 2025 0.63 0.49 – 103 0.159 – – –
Almeida et al. 2025 0.54 0.46 – 282 – 328 – –
Alfonso et al. 2024 0.56 0.40 – 191 -0.065 – – –
Hunt & Reffert 2024 – – – – – 105* – –
Cavallo et al. 2024 0.55 0.57 – 141 0.300 – – –
Hunt & Reffert 2023 0.52 0.23 0.76 124 – – – –
Tarricq et al. 2022 0.55 – – 129 – – – –
Dias et al. 2021 0.54 0.46 – 282 -0.065 – – –
Cantat-Gaudin et al. 2020 0.56 0.40 – 123 – – – –
Cantat-Gaudin & Anders 2020 0.55 – – – – – – –
Sim et al. 2019 0.55 – – 100 – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization
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UPK 167 UCC
UPK 167 HUNT23
UPK 167 CANTAT20
Galactocentric position diagram