Dolidze 32

(MWSC 2972)

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0.72 UTI
0.8
CN
0.62
Cdens
1.0
CC3
0.58
Clit
1.0
Cdup
Nm (P>50%) 221
Core radius and density 2.2 [pc], 3.1 [pc-2]
C3 classification AA
  • CN 0.8 Rich
  • Cdens 0.62 Moderately dense
  • CC3 1.0 Very high quality
  • Clit 0.58 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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Dolidze 32 is a rich, moderately dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, very young cluster, but with a large variance across recent sources for the distance and mass parameters (see Parameters). It is moderately studied in the literature.

Liu et al. (2025)
Classified as primordial binary cluster 136 along with UBC_353.

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P211, along with UBC_353.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1791, e_all=0.0197.

Bica et al. (2019)
Analysis of Dolidze objects by M. Kronberger reported in DAML02. Asterisms and cluster alikes by B. Alessi reported in DAML02.

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Data
🔍 Search references for Dolidze 32 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– 280.247 -4.068 0.468 -0.658 -2.108 21.815
Almeida et al. 2025 280.266 -4.055 – – – –
Hunt & Reffert 2024 280.243 -4.079 0.468 -0.629 -2.15 13.627
Cavallo et al. 2024 280.235 -4.087 0.468 – – –
Hunt & Reffert 2023 280.243 -4.079 0.468 -0.629 -2.15 13.627
Dias et al. 2021 280.266 -4.055 0.467 -0.695 -2.025 –
Cantat-Gaudin et al. 2020 280.26 -4.054 0.464 -0.705 -2.027 –
Cantat-Gaudin & Anders 2020 280.26 -4.054 0.464 -0.705 -2.027 –
Cantat-Gaudin et al. 2018 280.26 -4.054 0.464 -0.705 -2.027 –
Dias et al. 2018 – – – -0.76 -2.22 –
Dib et al. 2018 280.305 -4.035 – – – –
Sampedro et al. 2017 280.271 -4.081 – -0.28 -2.02 –
Joshi et al. 2016 280.305 -4.035 – – – –
Kharchenko et al. 2016 280.298 -4.037 – – – –
Dias et al. 2014 280.271 -4.081 – -0.67 -1.75 14.0
Kharchenko et al. 2013 280.305 -4.035 – -0.25 -3.6 14.0
Morales et al. 2013 280.271 -4.081 – – – –
Dias et al. 2002 280.271 -4.081 – -0.67 -1.75 14.0
Lynga 1987 280.112 -4.101 – – – –

💡 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– 1.99 3.37 2.41 13 -0.037 1858 – –
Liu et al. 2025 7.87 1.15 – 19 – – – –
Almeida et al. 2025 1.99 3.07 – 13 – 287 – –
Hunt & Reffert 2024 2.00 3.35 2.41 26 – 3428(1) – –
Cavallo et al. 2024 1.98 3.65 – 35 -0.110 – – –
Hunt & Reffert 2023 2.00 3.35 2.41 26 – – – –
Dias et al. 2021 1.99 3.07 – 13 0.035 – – –
Cantat-Gaudin et al. 2020 2.09 3.00 – 102 – – – –
Kounkel et al. 2020 2.18 3.39 – 37 – – – –
Cantat-Gaudin & Anders 2020 2.03 – – – – – – –
Cantat-Gaudin et al. 2018 2.03 – – – – – – –
Dib et al. 2018 1.38 – – 1 – – – –
Joshi et al. 2016 1.38 4.60 – 1 – – – –
Kharchenko et al. 2016 1.38 4.60 – 1 – – – –
Kharchenko et al. 2013 1.38 4.60 – 1 – – – –
Dias et al. 2002 1.38 4.60 – 1 – – – –

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

Visualization
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Dolidze 32 UCC
Dolidze 32 HUNT23
Dolidze 32 CANTAT20
Galactocentric position diagram