Collinder 434

(NGC 7062; MWSC 3505; OCL 205; FSR 0286; FoF 164)

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0.91 UTI
0.8
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 226
Stellar density (N50/rad) 28.6 [N/pc2]
C3 classification AB
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Collinder 434 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age 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.

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

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for Collinder 434 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 320.856 46.385 0.404 -1.903 -4.069 -21.655
Li et al. 2025 320.862 46.385 0.398 -1.914 -4.045 –
Hu & Soubiran 2025 320.84 46.372 – – – –
Almeida et al. 2025 320.858 46.374 – – – –
Hunt & Reffert 2024 320.859 46.39 0.405 -1.903 -4.07 -23.102
Cavallo et al. 2024 320.84 46.372 0.404 – – –
Hunt & Reffert 2023 320.859 46.39 0.405 -1.903 -4.07 -23.102
Almeida et al. 2023 320.857 46.374 – – – –
Just et al. 2023 320.856 46.387 – – – –
Dias et al. 2021 320.858 46.374 0.403 -1.937 -4.037 -21.763
Cantat-Gaudin et al. 2020 320.862 46.385 0.398 -1.914 -4.045 –
SΓ‘nchez et al. 2020 320.863 46.378 – -1.929 -4.079 –
Donor et al. 2020 320.862 46.39 – -1.84 -4.08 -22.0
Cantat-Gaudin & Anders 2020 320.862 46.385 0.398 -1.914 -4.045 –
Liu & Pang 2019 320.861 46.375 0.41 -1.924 -4.053 –
Soubiran et al. 2018 320.862 46.385 – – – -22.05
Bica et al. 2019 320.866 46.378 – – – –
Cantat-Gaudin et al. 2018 320.862 46.385 0.398 -1.914 -4.045 –
Loktin & Popova 2017 320.865 46.378 – -1.075 -1.169 –
Kharchenko et al. 2016 320.856 46.387 – – – –
Dias et al. 2014 320.862 46.378 – -1.68 -2.8 –
Kharchenko et al. 2013 320.862 46.39 – -2.49 -2.87 –
van den Bergh 2006 320.825 46.383 – – – –
Dias et al. 2002 320.863 46.378 – -2.52 -5.83 –

πŸ’‘ 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– 2.12 1.42 1.7 427 0.026 519 0.58 –
Li et al. 2025 2.27 1.67 – 427 0.017 – – –
Hu & Soubiran 2025 – – – – -0.150(5) – – –
Almeida et al. 2025 2.12 1.76 – 378 – 470 – –
Hunt & Reffert 2024 – – – – – 1188(1) – –
Cavallo et al. 2024 2.06 1.43 – 589 0.350 – – –
Hunt & Reffert 2023 2.27 1.67 1.70 310 – – – –
Almeida et al. 2023 2.12 1.68 – 447 0.036 568(1) 0.58 –
Just et al. 2023 – – – 692 – 129 – –
Dias et al. 2021 2.12 1.76 – 378 0.045 – – –
Cantat-Gaudin et al. 2020 2.49 1.41 – 427 – – – –
Donor et al. 2020 – – – – 0.010 – – –
Cantat-Gaudin & Anders 2020 2.34 – – – – – – –
Liu & Pang 2019 – – – 331 -0.250 – – –
Soubiran et al. 2018 2.34 – – – – – – –
Cantat-Gaudin et al. 2018 2.34 – – – – – – –
Loktin & Popova 2017 1.52 1.40 – 296 – – – –
Kharchenko et al. 2016 1.60 1.40 – 692 – – – –
Kharchenko et al. 2013 1.60 1.40 – 692 – – – –
van den Bergh 2006 1.48 1.40 – 288 – – – –
Dias et al. 2002 1.91 1.33 – 708 0.080 – – –

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

Visualization
ℹ️
Collinder 434 UCC
Collinder 434 HUNT23
Collinder 434 CANTAT20
Galactocentric position diagram