UPK 113

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0.56 UTI
0.59
CN
0.3
Cdens
0.75
CC3
0.59
Clit
1.0
Cdup
Nm (P>50%) 68
Core radius and density 2.4 [pc], 1.5 [pc-2]
C3 classification AB
  • CN 0.59 Moderately populated
  • Cdens 0.3 Loose
  • CC3 0.75 High quality
  • Clit 0.59 Moderately 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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UPK 113 is a moderately populated, loose 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 metallicity parameter (see Parameters). It is moderately studied in the literature.

Li et al. (2026)
Tidal & Core radii: r_t=18+/-23.1 [pc], r_c=0.28+/-0.04 [pc]; stars within r_t: N~52

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 295 along with NGC_7063.

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P238, along with NGC_7063.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data
🔍 Search references for UPK 113 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– 317.49 34.248 1.422 2.164 -2.365 -14.749
Li et al. 2026 317.48 34.35 – – – –
Li et al. 2025 317.505 34.347 1.434 2.169 -2.418 –
Almeida et al. 2025 317.443 34.377 – – – –
Alfonso et al. 2024 317.477 34.405 1.39 2.167 -2.357 –
Swiggum et al. 2024 317.527 34.278 1.426 2.121 -2.402 -14.45
Hunt & Reffert 2024 317.527 34.278 1.426 2.121 -2.402 -9.845
Cavallo et al. 2024 317.394 34.398 1.423 – – –
Hunt & Reffert 2023 317.527 34.278 1.426 2.121 -2.402 -9.845
He et al. 2022 317.467 34.234 1.424 2.202 -2.39 –
Dias et al. 2021 317.443 34.377 1.415 2.193 -2.415 -14.576
Cantat-Gaudin et al. 2020 317.505 34.347 1.434 2.169 -2.418 –
Cantat-Gaudin & Anders 2020 317.509 34.347 1.425 2.187 -2.498 –
Sim et al. 2019 317.451 34.364 – 2.16 -2.34 –

💡 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– 0.68 0.165 0.52 48 0.030 89 – –
Liu et al. 2025 0.75 0.08 – 47 – – – –
Li et al. 2025 0.59 0.28 – 64 -0.252 – – –
Almeida et al. 2025 0.68 0.31 – 64 – 70 – –
Alfonso et al. 2024 0.72 0.15 – 42 0.030 – – –
Swiggum et al. 2024 0.68 – – 48 – 198 – –
Hunt & Reffert 2024 0.67 0.13 0.52 48 – 89(1) – –
Cavallo et al. 2024 0.71 0.18 – 39 0.380 – – –
Hunt & Reffert 2023 0.67 0.13 0.52 48 – – – –
He et al. 2022 – 0.35 – 35 – – – –
Tarricq et al. 2022 0.70 – – 52 – – – –
Dias et al. 2021 0.68 0.31 – 64 0.030 – – –
Cantat-Gaudin et al. 2020 0.72 0.15 – 49 – – – –
Cantat-Gaudin & Anders 2020 0.69 – – – – – – –
Sim et al. 2019 0.68 – – 71 – – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization
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UPK 113 UCC
UPK 113 HUNT23
UPK 113 CANTAT20
Galactocentric position diagram