UBC 422

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0.65 UTI
0.6
CN
0.88
Cdens
0.75
CC3
0.5
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 71
Radius (P>50% members) 5.0 [arcmin]
  • CN 0.6 Moderately populated
  • Cdens 0.88 Dense
  • CC3 0.75 High quality
  • Clit 0.5 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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UBC 422 is a moderately populated, dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is moderately studied in the literature.
Relatively close Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UBC 422 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 – 40.553 58.178 0.361 0.59 -0.711 –
Almeida et al. 2025 40.569 58.163 – – – –
Hunt & Reffert 2024 40.557 58.184 0.36 0.567 -0.731 –
Cavallo et al. 2024 40.552 58.195 0.361 – – –
Hunt & Reffert 2023 40.557 58.184 0.36 0.567 -0.731 –
Almeida et al. 2023 40.592 58.174 – – – –
Dias et al. 2021 40.569 58.163 0.36 0.584 -0.706 –
Cantat-Gaudin et al. 2020 40.546 58.171 0.367 0.618 -0.693 –
Castro-Ginard et al. 2020 40.523 58.191 0.369 0.609 -0.694 –

💡 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
Almeida et al. 2025 2.49 2.20 – 12 – 426 – –
Hunt & Reffert 2024 – – – – – 425* – –
Cavallo et al. 2024 2.39 2.28 – 32 0.070 – – –
Hunt & Reffert 2023 2.53 2.11 1.13 46 – – – –
Almeida et al. 2023 2.35 2.27 – 25 -0.149 1353* 0.59 –
Dias et al. 2021 2.49 2.20 – 12 -0.048 – – –
Cantat-Gaudin et al. 2020 2.36 1.82 – 56 – – – –

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

Visualization
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UBC 422 UCC
UBC 422 HUNT23
UBC 422 CANTAT20
Galactocentric position diagram