UBC 478

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0.43 UTI
0.55
CN
0.38
Cdens
0.75
CC3
0.23
Clit
1.0
Cdup
Nm (P>50%) 59
Core radius and density 1.6 [pc], 1.9 [pc-2]
C3 classification AB
  • CN 0.55 Moderately populated
  • Cdens 0.38 Loose
  • CC3 0.75 High quality
  • Clit 0.23 Rarely 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 478 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is rarely studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.53 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.53 (50th percentile).

Data
🔍 Search references for UBC 478 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– 119.392 -44.659 0.353 -2.589 5.935 44.502
Li et al. 2025 119.399 -44.648 0.321 -2.615 5.924 –
Hu & Soubiran 2025 119.355 -44.682 – – – –
Hunt & Reffert 2024 119.405 -44.65 0.35 -2.598 5.922 38.254
Cavallo et al. 2024 119.354 -44.682 0.351 – – –
Hunt & Reffert 2023 119.405 -44.65 0.35 -2.598 5.922 38.254
Jadhav & Subramaniam 2021 119.399 -44.648 – – – –
Cantat-Gaudin et al. 2020 119.399 -44.648 0.321 -2.615 5.924 –
Castro-Ginard et al. 2020 119.372 -44.661 0.32 -2.614 5.924 –

💡 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– 2.51 0.47 0.69 1349 -0.130 273 – 0
Li et al. 2025 2.57 0.52 – 1266 -0.015 – – –
Hu & Soubiran 2025 – – – – -0.130(5) – – –
Hunt & Reffert 2024 2.51 0.27 0.69 1518 – 162(1) – –
Cavallo et al. 2024 2.22 0.82 – 1318 -0.330 – – –
Hunt & Reffert 2023 2.51 0.27 0.69 1517 – – – –
Jadhav & Subramaniam 2021 2.86 0.47 – 1349 – 384 – 0(1)
Cantat-Gaudin et al. 2020 2.86 0.47 – 1349 – – – –
Kounkel et al. 2020 2.46 1.46 – 813 – – – –

(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 3299 72.9 119.39 -44.66 0.35 -2.59 5.93 44.34 0.0

💡 Note: The % column shows the percentage of members that UBC 478 shares with each listed object.

Visualization
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UBC 478 UCC
UBC 478 HUNT23
UBC 478 CANTAT20
Galactocentric position diagram