UPK 26

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0.62 UTI
0.52
CN
0.52
Cdens
0.75
CC3
0.65
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 54
Radius (P>50% members) 17.1 [arcmin]
  • CN 0.52 Moderately populated
  • Cdens 0.52 Moderately dense
  • CC3 0.75 High quality
  • Clit 0.65 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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UPK 26 is a moderately populated, moderately dense object of high C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is moderately studied in the literature.
Close Low extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UPK 26 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 – 283.465 -9.808 1.089 0.08 -4.451 2.642
Li et al. 2025 283.438 -9.847 1.108 0.062 -4.419 –
Almeida et al. 2025 283.472 -9.8 – – – –
Alfonso et al. 2024 283.722 -9.474 1.036 0.078 -4.382 –
Hunt & Reffert 2024 283.472 -9.831 1.083 0.097 -4.41 3.525
Cavallo et al. 2024 283.526 -9.751 1.088 – – –
Hunt & Reffert 2023 283.472 -9.831 1.083 0.097 -4.41 3.525
Tarricq et al. 2022 283.494 -9.77 1.094 0.11 -4.452 –
Dias et al. 2021 283.472 -9.8 1.113 0.056 -4.406 –
Cantat-Gaudin et al. 2020 283.438 -9.847 1.108 0.062 -4.419 –
Cantat-Gaudin & Anders 2020 283.451 -9.796 1.108 0.067 -4.416 –
Sim et al. 2019 283.469 -9.827 – 0.08 -4.42 –

💡 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 0.95 0.85 – 60 0.360 – – –
Almeida et al. 2025 0.88 1.00 – 92 – 129 – –
Alfonso et al. 2024 0.85 0.59 – 205 0.078 – – –
Hunt & Reffert 2024 – – – – – 279* – –
Cavallo et al. 2024 0.92 1.15 – 59 0.090 – – –
Hunt & Reffert 2023 0.88 0.85 0.78 109 – – – –
Tarricq et al. 2022 0.83 – – 81 – – – –
Dias et al. 2021 0.88 1.00 – 92 0.078 – – –
Cantat-Gaudin et al. 2020 0.86 0.59 – 72 – – – –
Cantat-Gaudin & Anders 2020 0.88 – – – – – – –
Sim et al. 2019 0.88 – – 112 – – – –

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

Visualization
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UPK 26 UCC
UPK 26 HUNT23
UPK 26 CANTAT20
Galactocentric position diagram