Collinder 139

(NGC 2374; MWSC 1206; OCL 585)

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0.90 UTI
0.75
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 104
Stellar density (N50/rad) 5.8 [N/pc2]
C3 classification AB
  • CN 0.75 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Collinder 139 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Collinder 139 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 111.014 -13.246 0.767 -4.638 0.687 46.334
Li et al. 2025 111.016 -13.235 0.76 -4.665 0.659 –
Almeida et al. 2025 111.0 -13.236 – – – –
Hunt & Reffert 2024 111.026 -13.268 0.759 -4.629 0.685 46.397
Cavallo et al. 2024 111.011 -13.258 0.765 – – –
Hunt & Reffert 2023 111.026 -13.268 0.759 -4.629 0.685 46.397
Almeida et al. 2023 111.004 -13.243 – – – –
Cordoni et al. 2023 111.0 -13.236 0.753 -4.687 0.656 –
Just et al. 2023 110.994 -13.267 – – – –
Tarricq et al. 2022 111.031 -13.236 0.765 -4.628 0.695 –
Jaehnig et al. 2021 111.007 -13.251 0.784 -4.626 0.658 –
Rain et al. 2021 111.016 -13.235 0.76 -4.665 0.659 –
Dias et al. 2021 111.0 -13.236 0.753 -4.687 0.656 –
Cantat-Gaudin et al. 2020 111.016 -13.235 0.76 -4.665 0.659 –
Cantat-Gaudin & Anders 2020 111.016 -13.235 0.76 -4.665 0.659 –
Bossini et al. 2019 111.016 -13.235 – – – –
Soubiran et al. 2018 111.016 -13.235 – – – 53.72
Bica et al. 2019 110.99 -13.254 – – – –
Cantat-Gaudin et al. 2018 111.016 -13.235 0.76 -4.665 0.659 –
Loktin & Popova 2017 110.985 -13.262 – -1.933 -0.171 27.2
Kharchenko et al. 2016 110.994 -13.267 – – – –
Dias et al. 2014 110.983 -13.263 – -1.78 -0.76 –
Kharchenko et al. 2013 111.0 -13.27 – -3.4 -0.66 27.2
Gozha et al. 2012 110.983 -13.263 – – – –
Piskunov et al. 2008 110.981 -13.259 – – – –
Kharchenko et al. 2007 110.98 -13.26 – 0.27 – –
Piskunov et al. 2007 110.981 -13.259 – – – –
van den Bergh 2006 110.975 -13.267 – – – –
Kharchenko et al. 2005 110.98 -13.26 – -3.85 -1.14 –
Kharchenko et al. 2003 111.03 -13.23 – -4.01 -1.7 –
Chen et al. 2003 110.958 -13.26 – -4.65 -1.1 27.2
Dias et al. 2002 110.983 -13.263 – -1.78 -0.76 29.25

💡 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– 1.27 0.3 0.76 378 0.035 439 0.535 0.0
Li et al. 2025 1.20 0.42 – 416 -0.030 – – –
Almeida et al. 2025 1.18 0.53 – 354 – 204 – –
Hunt & Reffert 2024 – – – – – 438(1) – –
Cavallo et al. 2024 1.31 0.43 – 417 0.440 – – –
Hunt & Reffert 2023 1.22 0.30 0.76 455 – – – –
Almeida et al. 2023 1.21 0.52 – 376 0.029 257(1) 0.45 –
Cordoni et al. 2023 1.18 0.53 – 354 0.041 535 0.62 0.00
Just et al. 2023 – – – 562 – 244 – –
Tarricq et al. 2022 1.18 – – 309 – – – –
Jaehnig et al. 2021 1.27(1) – – – – – – –
Rain et al. 2021 1.27 0.40 – 380 – – – 0
Dias et al. 2021 1.18 0.53 – 354 0.041 – – –
Cantat-Gaudin et al. 2020 1.21 0.34 – 288 – – – –
Cantat-Gaudin & Anders 2020 1.27 – – – – – – –
Bossini et al. 2019 1.21 0.42 – 385 0.000 – – –
Soubiran et al. 2018 1.27 – – – – – – –
Cantat-Gaudin et al. 2018 1.27 – – – – – – –
Loktin & Popova 2017 1.52 0.29 – 304 – – – –
Kharchenko et al. 2016 1.39 0.28 – 562 – – – –
Kharchenko et al. 2013 1.39 0.28 – 562 – – – –
Gozha et al. 2012 1.47 – – 290 – 1413 – –
Piskunov et al. 2008 1.47 0.28 – 479 – 1445(1) – –
Piskunov et al. 2007 1.47 0.28 – 479 – 440 – –
van den Bergh 2006 1.47 0.28 – 288 – – – –
Kharchenko et al. 2005 1.47 0.28 – 479 – – – –
Kharchenko et al. 2003 1.49 0.28 – – – – – –
Chen et al. 2003 1.47 – – 290 – – – –
Dias et al. 2002 1.47 0.28 – 290 – – – –

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

Visualization
ℹī¸
Collinder 139 UCC
Collinder 139 HUNT23
Collinder 139 CANTAT20
Galactocentric position diagram