Collinder 443

(NGC 7160; MWSC 3572; OCL 236; FoF 2256)

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0.91 UTI
0.82
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 280
Stellar density (N50/rad) 17.4 [N/pc2]
C3 classification AB
  • CN 0.82 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 443 is a rich, very dense object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

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

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Collinder 443 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 328.436 62.569 1.086 -3.47 -1.387 -24.18
Li et al. 2025 328.448 62.589 1.05 -3.472 -1.378 –
Wei et al. 2025 328.442 62.451 1.103 -3.493 -1.445 –
Almeida et al. 2025 328.443 62.588 – – – –
Alfonso et al. 2024 328.419 62.547 1.061 -3.484 -1.384 –
Hunt & Reffert 2024 328.456 62.579 1.09 -3.484 -1.394 -25.245
Celli et al. 2024 328.448 62.589 – – – –
Cavallo et al. 2024 328.398 62.546 1.09 – – –
Hunt & Reffert 2023 328.456 62.579 1.09 -3.484 -1.394 -25.245
Almeida et al. 2023 328.446 62.584 – – – –
Just et al. 2023 328.412 62.606 – – – –
He et al. 2022 328.471 62.528 1.085 -3.476 -1.4 –
Jaehnig et al. 2021 328.443 62.567 1.084 -3.488 -1.283 –
Rain et al. 2021 328.448 62.589 1.05 -3.472 -1.378 –
Dias et al. 2021 328.443 62.588 1.052 -3.405 -1.348 –
Cantat-Gaudin et al. 2020 328.448 62.589 1.05 -3.472 -1.378 –
Cantat-Gaudin & Anders 2020 328.448 62.589 1.05 -3.472 -1.378 –
Liu & Pang 2019 328.425 62.547 1.054 -3.451 -1.347 –
Soubiran et al. 2018 328.448 62.589 – – – -28.0
Bica et al. 2019 328.424 62.597 – – – –
Cantat-Gaudin et al. 2018 328.448 62.589 1.05 -3.472 -1.378 –
Loktin & Popova 2017 328.41 62.603 – 0.774 -1.2 -26.3
Kharchenko et al. 2016 328.412 62.606 – – – –
Dias et al. 2014 328.417 62.603 – -3.11 -1.31 –
Kharchenko et al. 2013 328.417 62.61 – -2.49 -2.37 -26.3
Gozha et al. 2012 328.416 62.603 – – – –
Kharchenko et al. 2012 328.417 62.61 – -2.49 -2.37 -26.28
Piskunov et al. 2008 328.393 62.598 – – – –
Kharchenko et al. 2007 328.41 62.6 – 0.23 – -26.28
van den Bergh 2006 328.4 62.6 – – – –
Kharchenko et al. 2005 328.41 62.6 – -3.01 -1.77 -26.28
Kharchenko et al. 2003 328.44 62.6 – -2.84 -2.35 –
Chen et al. 2003 328.339 62.629 – -2.71 -1.49 -20.0
Dias et al. 2002 328.417 62.603 – -3.11 -1.31 -23.31
Dambis 1999 328.417 62.603 – – – –

💡 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– 0.885 1.15 1.18 16 0.116 205 0.715 0.0
Li et al. 2025 0.89 1.14 – 13 0.164 – – –
Wei et al. 2025 0.96 1.28 – 7 -0.250 686 0.63 –
Almeida et al. 2025 0.92 1.31 – 13 – 150 – –
Alfonso et al. 2024 0.90 1.07 – 16 0.116 – – –
Hunt & Reffert 2024 – – – – – 320(1) – –
Celli et al. 2024 – – – 14 – 212 – –
Cavallo et al. 2024 0.95 1.25 – 6 -0.130 – – –
Hunt & Reffert 2023 0.88 0.98 1.18 9 – – – –
Almeida et al. 2023 0.89 1.19 – 18 -0.036 205(1) 0.80 –
Just et al. 2023 – – – 16 – 57 – –
He et al. 2022 – 1.30 – 8 – – – –
Jaehnig et al. 2021 0.93(1) – – – – – – –
Rain et al. 2021 0.93 1.15 – 19 – – – 0
Dias et al. 2021 0.92 1.31 – 13 0.116 – – –
Cantat-Gaudin et al. 2020 0.90 1.07 – 14 – – – –
Cantat-Gaudin & Anders 2020 0.93 – – – – – – –
Liu & Pang 2019 – – – 9 -1.000 – – –
Soubiran et al. 2018 0.93 – – – – – – –
Cantat-Gaudin et al. 2018 0.93 – – – – – – –
Loktin & Popova 2017 0.80 1.16 – 19 – – – –
Kharchenko et al. 2016 0.80 0.78 – 16 – – – –
Kharchenko et al. 2013 0.80 0.78 – 16 0.160 – – –
Gozha et al. 2012 0.79 – – 19 0.160 105 – –
Kharchenko et al. 2012 0.80 0.78 – 16 0.160 – – –
Piskunov et al. 2008 0.79 1.08 – 46 – – – –
van den Bergh 2006 0.79 1.18 – 19 – – – –
Kharchenko et al. 2005 0.79 1.08 – 46 – – – –
Kharchenko et al. 2003 0.79 0.93 – – – – – –
Chen et al. 2003 0.79 – – 10 – – – –
Dias et al. 2002 0.79 1.16 – 19 0.160 – – –
Dambis 1999 0.68 1.25 – 14 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
HSC 811 8.9 328.41 62.61 1.16 -3.47 -1.33 -18.32 0.0

💡 Note: The % column shows the percentage of members that Collinder 443 shares with each listed object.

Visualization
ℹī¸
Collinder 443 UCC
Collinder 443 HUNT23
Collinder 443 CANTAT20
Galactocentric position diagram