UBC 424

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0.51 UTI
0.57
CN
0.56
Cdens
0.75
CC3
0.32
Clit
1.0
Cdup
Nm (P>50%) 65
Core radius and density 1.2 [pc], 2.8 [pc-2]
C3 classification AB
  • CN 0.57 Moderately populated
  • Cdens 0.56 Moderately dense
  • CC3 0.75 High quality
  • Clit 0.32 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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UBC 424 is a moderately populated, moderately dense object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate 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 poorly studied in the literature.

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data
🔍 Search references for UBC 424 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 99999– 50.968 51.239 0.435 0.006 -1.694 -40.764
Li et al. 2025 50.967 51.237 0.413 0.073 -1.67 –
Almeida et al. 2025 50.992 51.261 – – – –
Zhang et al. 2024 50.959 51.238 – – – –
Hunt & Reffert 2024 50.958 51.238 0.443 0.001 -1.68 -40.765
Cavallo et al. 2024 50.972 51.262 0.443 – – –
Hunt & Reffert 2023 50.958 51.238 0.443 0.001 -1.68 -40.765
Almeida et al. 2023 50.998 51.268 – – – –
Jadhav & Subramaniam 2021 50.967 51.237 – – – –
Dias et al. 2021 50.992 51.261 0.396 0.088 -1.607 –
Cantat-Gaudin et al. 2020 50.967 51.237 0.413 0.073 -1.67 –
Castro-Ginard et al. 2020 50.976 51.258 0.42 0.067 -1.646 –

💡 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 99999– 2.08 1.725 1.25 432 -0.137 344 0.62 0
Li et al. 2025 1.78 1.65 – 744 -0.137 – – –
Almeida et al. 2025 2.08 1.91 – 430 – 422 – –
Zhang et al. 2024 – – – – -0.168(1) – – –
Hunt & Reffert 2024 2.06 1.58 1.25 434 – 375(1) – –
Cavallo et al. 2024 2.12 1.77 – 372 0.330 – – –
Hunt & Reffert 2023 2.06 1.58 1.25 435 – – – –
Almeida et al. 2023 1.96 1.97 – 493 -0.139 303(1) 0.62 –
Jadhav & Subramaniam 2021 2.25 1.68 – 389 – 314 – 0(1)
Dias et al. 2021 2.08 1.91 – 430 -0.074 – – –
Cantat-Gaudin et al. 2020 2.25 1.68 – 389 – – – –
Kounkel et al. 2020 2.17 2.38 – 437 – – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 238 66.2 50.97 51.24 0.44 -0.01 -1.69 -40.76 0.01

💡 Note: The % column shows the percentage of members that UBC 424 shares with each listed object.

Visualization
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UBC 424 UCC
UBC 424 HUNT23
UBC 424 CANTAT20
Galactocentric position diagram