UBC 134

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0.70 UTI
0.75
CN
1.0
Cdens
0.75
CC3
0.5
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 105
Radius (P>50% members) 3.8 [arcmin]
  • CN 0.75 Rich
  • Cdens 1.0 Very 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 134 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UBC 134 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 – 299.721 31.087 0.371 -2.175 -6.009 -6.8
Li et al. 2025 299.722 31.095 0.368 -2.174 -5.983 –
Almeida et al. 2025 299.73 31.09 – – – –
Hunt & Reffert 2024 299.718 31.086 0.366 -2.172 -6.033 9.265
Cavallo et al. 2024 299.725 31.098 0.368 – – –
Hunt & Reffert 2023 299.718 31.086 0.366 -2.172 -6.033 9.265
Dias et al. 2021 299.73 31.09 0.368 -2.178 -5.977 –
Cantat-Gaudin et al. 2020 299.722 31.095 0.368 -2.174 -5.983 –
Castro-Ginard et al. 2020 299.732 31.098 0.374 -2.177 -5.988 –

💡 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 2.16 2.62 – 80 -0.050 – – –
Almeida et al. 2025 2.30 2.46 – 22 – 558 – –
Hunt & Reffert 2024 – – – – – 1013* – –
Cavallo et al. 2024 2.88 2.56 – 69 0.760 – – –
Hunt & Reffert 2023 2.48 2.59 1.81 36 – – – –
Dias et al. 2021 2.30 2.46 – 22 0.118 – – –
Cantat-Gaudin et al. 2020 2.37 1.92 – 74 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 2447 56.2 299.72 31.09 0.37 -2.2 -5.99 – 0.02

💡 Note: The % column shows the percentage of members that UBC 134 shares with each listed object.

Visualization
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UBC 134 UCC
UBC 134 HUNT23
UBC 134 CANTAT20
Galactocentric position diagram