UPK 282

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0.79 UTI
0.62
CN
1.0
Cdens
0.75
CC3
0.79
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 73
Radius (P>50% members) 13.5 [arcmin]
  • CN 0.62 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.79 Well-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 282 is a moderately populated, very 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, but with a large variance across recent sources for the age parameter (see Parameters). It is well-studied in the literature.

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

Close Low extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UPK 282 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 – 30.322 43.781 1.261 -2.846 -3.346 -11.093
Li et al. 2025 30.347 43.787 1.209 -2.8 -3.227 –
Almeida et al. 2025 30.32 43.811 – – – –
Alfonso et al. 2024 30.321 43.672 1.243 -2.852 -3.359 –
Zhang et al. 2024 30.388 43.765 – – – –
Hunt & Reffert 2024 30.388 43.765 1.265 -2.898 -3.322 -13.457
Cavallo et al. 2024 30.312 43.771 1.266 – – –
Hunt & Reffert 2023 30.388 43.765 1.265 -2.898 -3.322 -13.457
Almeida et al. 2023 30.321 43.791 – – – –
He et al. 2022 30.355 43.728 1.267 -2.852 -3.385 –
Tarricq et al. 2022 30.287 43.793 1.265 -2.854 -3.355 –
Dias et al. 2021 30.32 43.811 1.2 -2.81 -3.19 –
Cantat-Gaudin et al. 2020 30.347 43.787 1.209 -2.8 -3.227 –
Cantat-Gaudin & Anders 2020 30.363 43.773 1.203 -2.777 -3.118 –
Sim et al. 2019 30.326 43.785 – -2.79 -3.19 –

💡 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 0.76 0.33 – 174 -0.054 – – –
Almeida et al. 2025 0.82 0.51 – 209 – 98 – –
Alfonso et al. 2024 0.78 0.27 – 89 -0.101 – – –
Zhang et al. 2024 – – – – -0.120* – – –
Hunt & Reffert 2024 – – – – – 116* – –
Cavallo et al. 2024 0.81 0.28 – 72 0.180 – – –
Hunt & Reffert 2023 0.75 0.25 0.59 100 – – – –
Almeida et al. 2023 0.77 0.31 – 255 -0.041 63* 0.45 –
He et al. 2022 – 0.30 – 71 – – – –
Tarricq et al. 2022 0.77 – – 79 – – – –
Dias et al. 2021 0.82 0.51 – 209 -0.101 – – –
Cantat-Gaudin et al. 2020 0.78 0.27 – 76 – – – –
Cantat-Gaudin & Anders 2020 0.81 – – – – – – –
Sim et al. 2019 0.81 – – 79 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 193 100.0 30.32 43.78 1.25 -2.85 -3.35 -11.29 0.09

💡 Note: The % column shows the percentage of members that UPK 282 shares with each listed object.

Visualization
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UPK 282 UCC
UPK 282 HUNT23
UPK 282 CANTAT20
Galactocentric position diagram