UBC 380

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0.64 UTI
0.47
CN
1.0
Cdens
0.75
CC3
0.5
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 47
Radius (P>50% members) 4.1 [arcmin]
  • CN 0.47 Poorly populated
  • 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 380 is a poorly populated, very 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, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is moderately studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UBC 380 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 – 317.726 47.698 0.446 -0.994 -1.774 -29.904
Li et al. 2025 317.71 47.705 0.437 -1.003 -1.742 –
Almeida et al. 2025 317.717 47.715 – – – –
Hunt & Reffert 2024 317.714 47.687 0.446 -1.011 -1.803 -8.077
Cavallo et al. 2024 317.7 47.67 0.451 – – –
Hunt & Reffert 2023 317.714 47.687 0.446 -1.011 -1.803 -8.077
Dias et al. 2021 317.717 47.715 0.436 -0.997 -1.712 –
Cantat-Gaudin et al. 2020 317.71 47.705 0.437 -1.003 -1.742 –
Castro-Ginard et al. 2020 317.697 47.709 0.438 -1.007 -1.748 –

💡 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 1.54 0.90 – 765 -0.037 – – –
Almeida et al. 2025 2.11 1.34 – 207 – 186 – –
Hunt & Reffert 2024 – – – – – 374* – –
Cavallo et al. 2024 2.14 1.74 – 166 0.190 – – –
Hunt & Reffert 2023 2.07 1.47 2.46 122 – – – –
Dias et al. 2021 2.11 1.34 – 207 0.430 – – –
Cantat-Gaudin et al. 2020 1.95 0.92 – 79 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
XDOCC 11 91.5 317.74 47.7 0.45 -1.01 -1.77 -11.29 0.09

💡 Note: The % column shows the percentage of members that UBC 380 shares with each listed object.

Visualization
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UBC 380 UCC
UBC 380 HUNT23
UBC 380 CANTAT20
Galactocentric position diagram