UBC 443

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0.68 UTI
0.53
CN
1.0
Cdens
0.75
CC3
0.55
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 56
Radius (P>50% members) 3.0 [arcmin]
  • CN 0.53 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.55 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 443 is a moderately populated, very 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, old cluster (see Parameters). It is moderately studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Old

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UBC 443 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 – 98.644 -6.827 0.292 0.265 0.08 27.977
Li et al. 2025 98.638 -6.818 0.298 0.256 0.076 –
Hu & Soubiran 2025 98.63 -6.804 – – – –
Almeida et al. 2025 98.631 -6.795 – – – –
Hunt & Reffert 2024 98.643 -6.834 0.289 0.247 0.077 20.054
Cavallo et al. 2024 98.63 -6.804 0.295 – – –
Hunt & Reffert 2023 98.643 -6.834 0.289 0.247 0.077 20.054
Dias et al. 2021 98.631 -6.795 0.275 0.228 0.082 25.029
Cantat-Gaudin et al. 2020 98.638 -6.818 0.298 0.256 0.076 –
Castro-Ginard et al. 2020 98.631 -6.804 0.303 0.245 0.08 –

💡 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 2.75 0.94 – 1474 -0.183 – – –
Hu & Soubiran 2025 – – – – -0.210* – – –
Almeida et al. 2025 2.70 1.54 – 782 – 231 – –
Hunt & Reffert 2024 – – – – – 379* – –
Cavallo et al. 2024 2.57 1.20 – 1230 -0.170 – – –
Hunt & Reffert 2023 3.16 0.69 1.22 1119 – – – –
Dias et al. 2021 2.70 1.54 – 782 -0.152 – – –
Cantat-Gaudin et al. 2020 3.18 0.90 – 891 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 65 30.4 98.66 -6.84 0.3 0.28 0.17 30.88 0.07

💡 Note: The % column shows the percentage of members that UBC 443 shares with each listed object.

Visualization
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UBC 443 UCC
UBC 443 HUNT23
UBC 443 CANTAT20
Galactocentric position diagram