UBC 132

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0.73 UTI
0.8
CN
1.0
Cdens
1.0
CC3
0.44
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 233
Radius (P>50% members) 2.5 [arcmin]
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.44 Poorly 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 132 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

Note: This object shares a small percentage of members with 2 later reported entries. See table with shared members information.

Relatively close High extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UBC 132 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 – 299.274 28.448 0.289 -1.885 -4.836 8.543
Almeida et al. 2025 299.277 28.439 – – – –
Hunt & Reffert 2024 299.272 28.445 0.302 -1.889 -4.851 24.025
Cavallo et al. 2024 299.274 28.446 0.301 – – –
Hunt & Reffert 2023 299.272 28.445 0.302 -1.889 -4.851 24.025
Dias et al. 2021 299.277 28.439 0.271 -1.916 -4.801 8.05
Cantat-Gaudin et al. 2020 299.271 28.445 0.272 -1.897 -4.814 –
Castro-Ginard et al. 2020 299.27 28.446 0.271 -1.911 -4.796 –

💡 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 2.91 3.05 – 480 – 2350 – –
Hunt & Reffert 2024 – – – – – 2934* – –
Cavallo et al. 2024 3.09 3.94 – 145 -0.060 – – –
Hunt & Reffert 2023 3.09 3.56 2.05 106 – – – –
Dias et al. 2021 2.91 3.05 – 480 0.158 – – –
Cantat-Gaudin et al. 2020 2.94 2.67 – 955 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0089 23.6 299.27 28.45 0.31 -1.89 -4.84 9.31 0.0
OC 0088 20.2 299.27 28.45 0.29 -1.88 -4.84 9.02 0.0

💡 Note: The % column shows the percentage of members that UBC 132 shares with each listed object.

Visualization
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UBC 132 UCC
UBC 132 HUNT23
UBC 132 CANTAT20
Galactocentric position diagram