Collinder 143

(Collinder 142; NGC 2384; MWSC 1216; OCL 618; ESO 559 09)

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0.72 UTI
0.51
CN
0.35
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 52
Stellar density (N50/rad) 1.8 [N/pc2]
C3 classification AB
  • CN 0.51 Moderately populated
  • Cdens 0.35 Loose
  • 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
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Collinder 143 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Collinder 143 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– 111.309 -21.013 0.342 -2.31 3.12 26.347
Li et al. 2025 111.291 -21.021 0.33 -2.303 3.118 –
Almeida et al. 2025 111.291 -21.021 – – – –
Hunt & Reffert 2024 111.287 -21.022 0.341 -2.314 3.109 26.354
Cavallo et al. 2024 111.346 -20.995 0.342 – – –
Hunt & Reffert 2023 111.287 -21.022 0.341 -2.314 3.109 26.354
Almeida et al. 2023 111.291 -21.018 – – – –
Just et al. 2023 111.279 -21.018 – – – –
Jaehnig et al. 2021 111.316 -20.987 0.364 -2.292 3.131 –
Dias et al. 2021 111.291 -21.021 0.33 -2.303 3.118 –
Bica et al. 2019 111.289 -21.012 – – – –
Loktin & Popova 2017 111.285 -21.022 – -5.137 1.854 49.5
Kharchenko et al. 2016 111.279 -21.018 – – – –
Dias et al. 2014 111.292 -21.022 – -1.29 1.37 –
Kharchenko et al. 2013 111.285 -21.02 – -6.44 3.29 49.5
Gozha et al. 2012 111.292 -21.022 – – – –
Piskunov et al. 2008 111.28 -21.016 – – – –
Kharchenko et al. 2007 111.28 -21.02 – 0.13 – 49.54
van den Bergh 2006 111.3 -21.023 – – – –
Kharchenko et al. 2005 111.28 -21.02 – -5.89 2.86 49.54
Kharchenko et al. 2003 111.3 -21.02 – -5.43 3.22 –
Dias et al. 2002 111.292 -21.022 – -1.29 1.37 53.25
Dambis 1999 111.292 -21.022 – – – –

💡 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– 2.49 0.86 0.74 14 -0.139 294 0.72 –
Li et al. 2025 2.84 0.82 – 32 -0.068 – – –
Almeida et al. 2025 2.49 0.98 – 21 – 205 – –
Hunt & Reffert 2024 – – – – – 264(1) – –
Cavallo et al. 2024 2.62 0.93 – 19 -0.370 – – –
Hunt & Reffert 2023 3.09 0.61 0.74 67 – – – –
Almeida et al. 2023 2.27 0.91 – 24 -0.130 313(1) 0.72 –
Just et al. 2023 – – – 13 – 294 – –
Jaehnig et al. 2021 2.78(1) – – – – – – –
Dias et al. 2021 2.49 0.98 – 21 -0.147 – – –
Loktin & Popova 2017 2.09 0.78 – 9 – – – –
Kharchenko et al. 2016 2.07 1.23 – 13 – – – –
Kharchenko et al. 2013 2.07 1.23 – 13 – – – –
Gozha et al. 2012 2.90 – – 14 – 490 – –
Piskunov et al. 2008 2.12 0.81 – 13 – – – –
van den Bergh 2006 2.12 0.81 – 8 – – – –
Kharchenko et al. 2005 2.12 0.81 – 13 – – – –
Kharchenko et al. 2003 2.13 0.65 – – – – – –
Dias et al. 2002 3.07 0.96 – 14 – – – –
Dambis 1999 3.16 0.86 – 6 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 224 76.9 111.38 -20.96 0.33 -2.3 3.12 26.35 0.14
LISC 1139 19.2 111.39 -20.82 0.34 -2.27 3.16 – 0.17

💡 Note: The % column shows the percentage of members that Collinder 143 shares with each listed object.

Visualization
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Collinder 143 UCC
Collinder 143 HUNT23
Galactocentric position diagram