Collinder 422

(NGC 6913; MWSC 3329; M 29; OCL 168)

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0.95 UTI
0.76
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 120
Stellar density (N50/rad) 11.5 [N/pc2]
C3 classification AA
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very 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 422 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near 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 3 later reported entries. See table with shared members information.

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Collinder 422 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 305.929 38.505 0.559 -3.421 -5.791 -21.902
Almeida et al. 2025 305.912 38.484 – – – –
Hunt & Reffert 2024 305.955 38.499 0.562 -3.406 -5.81 -44.037
Celli et al. 2024 305.943 38.487 – – – –
Cavallo et al. 2024 305.949 38.507 0.563 – – –
Hunt & Reffert 2023 305.955 38.499 0.562 -3.406 -5.81 -44.037
Almeida et al. 2023 305.858 38.471 – – – –
Just et al. 2023 305.995 38.507 – – – –
Jaehnig et al. 2021 305.949 38.505 0.583 -3.406 -5.758 –
Rain et al. 2021 305.943 38.487 0.553 -3.409 -5.771 –
Dias et al. 2021 305.912 38.484 0.55 -3.411 -5.775 –
Cantat-Gaudin et al. 2020 305.943 38.487 0.553 -3.409 -5.771 –
Cantat-Gaudin & Anders 2020 305.943 38.487 0.553 -3.409 -5.771 –
Bica et al. 2019 305.987 38.502 – – – –
Cantat-Gaudin et al. 2018 305.943 38.487 0.553 -3.409 -5.771 –
Loktin & Popova 2017 305.985 38.508 – -1.703 -0.861 -19.6
Kharchenko et al. 2016 305.995 38.507 – – – –
Dias et al. 2014 305.987 38.508 – -3.21 -4.56 –
Kharchenko et al. 2013 306.0 38.51 – -4.0 -5.2 -19.6
Gozha et al. 2012 305.987 38.508 – – – –
Piskunov et al. 2008 305.977 38.508 – – – –
Kharchenko et al. 2007 305.98 38.51 – 0.11 – -21.05
van den Bergh 2006 305.983 38.523 – – – –
Kharchenko et al. 2005 305.98 38.51 – -3.8 -5.71 -21.05
Kharchenko et al. 2003 306.0 38.5 – -3.23 -5.36 –
Chen et al. 2003 305.977 38.508 – -2.95 -6.16 -34.0
Dias et al. 2002 305.988 38.508 – -3.21 -4.56 -16.9
Dambis 1999 305.983 38.523 – – – –

💡 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– 1.53 2.785 2.43 13 -0.121 571 0.6 0.0
Almeida et al. 2025 1.78 2.77 – 8 – 766 – –
Hunt & Reffert 2024 – – – – – 455(1) – –
Celli et al. 2024 – – – 22 – 687 – –
Cavallo et al. 2024 1.53 2.99 – 10 -0.240 – – –
Hunt & Reffert 2023 1.74 2.86 2.43 6 – – – –
Almeida et al. 2023 1.64 2.83 – 8 -0.003 903(1) 0.60 –
Just et al. 2023 – – – 32 – 43 – –
Jaehnig et al. 2021 1.71(1) – – – – – – –
Rain et al. 2021 1.72 3.19 – 5 – – – 0
Dias et al. 2021 1.78 2.77 – 8 0.206 – – –
Cantat-Gaudin et al. 2020 1.61 1.80 – 22 – – – –
Cantat-Gaudin & Anders 2020 1.72 – – – – – – –
Cantat-Gaudin et al. 2018 1.72 – – – – – – –
Loktin & Popova 2017 1.15 2.31 – 13 – – – –
Kharchenko et al. 2016 1.17 2.58 – 32 – – – –
Kharchenko et al. 2013 1.17 2.58 – 32 – – – –
Gozha et al. 2012 1.15 – – 13 -0.550 27 – –
Piskunov et al. 2008 1.15 3.04 – 13 – – – –
van den Bergh 2006 1.15 2.29 – 13 – – – –
Kharchenko et al. 2005 1.15 3.04 – 13 – – – –
Kharchenko et al. 2003 1.15 2.29 – – – – – –
Chen et al. 2003 1.15 – – 10 – – – –
Dias et al. 2002 1.54 3.19 – 5 – – – –
Dambis 1999 1.15 2.80 – 10 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 2501 2.5 305.47 38.74 0.56 -3.28 -5.68 – 0.04
OC 0114 1.7 305.81 38.94 0.57 -3.42 -5.73 5.16 0.13
UBC 140 0.8 305.37 38.6 0.56 -3.24 -6.0 -22.57 0.14

💡 Note: The % column shows the percentage of members that Collinder 422 shares with each listed object.

Visualization
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Collinder 422 UCC
Collinder 422 HUNT23
Collinder 422 CANTAT20
Galactocentric position diagram