Collinder 379

(NGC 6631; MWSC 2916; OCL 59)

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0.96 UTI
0.8
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 236
Stellar density (N50/rad) 29.2 [N/pc2]
C3 classification AA
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very 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 379 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

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

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

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for Collinder 379 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 276.788 -12.035 0.348 -0.369 -2.945 38.016
Almeida et al. 2025 276.792 -12.021 – – – –
Hunt & Reffert 2024 276.785 -12.039 0.361 -0.349 -2.961 37.874
Cavallo et al. 2024 276.782 -12.038 0.362 – – –
Hunt & Reffert 2023 276.785 -12.039 0.361 -0.349 -2.961 37.874
Just et al. 2023 276.805 -12.022 – – – –
Jaehnig et al. 2021 276.81 -12.009 0.345 -0.678 -2.524 –
Rain et al. 2021 276.79 -12.029 0.329 -0.388 -2.918 –
Dias et al. 2021 276.792 -12.021 0.329 -0.404 -2.918 –
Cantat-Gaudin et al. 2020 276.79 -12.029 0.329 -0.388 -2.918 –
SΓ‘nchez et al. 2020 276.796 -12.03 – -0.53 -3.025 –
Cantat-Gaudin & Anders 2020 276.79 -12.029 0.329 -0.388 -2.918 –
Soubiran et al. 2018 276.79 -12.029 – – – 37.64
Bica et al. 2019 276.775 -12.032 – – – –
Cantat-Gaudin et al. 2018 276.79 -12.029 0.329 -0.388 -2.918 –
Kharchenko et al. 2016 276.805 -12.022 – – – –
Dias et al. 2014 276.796 -12.03 – -0.28 -3.57 –
Kharchenko et al. 2013 276.813 -12.02 – -2.2 -5.67 –
van den Bergh 2006 276.8 -12.033 – – – –
Dias et al. 2002 276.796 -12.03 – -0.28 -3.57 –

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– 2.735 2.495 1.89 398 -0.377 1787 – 0.0
Almeida et al. 2025 2.37 2.73 – 155 – 662 – –
Hunt & Reffert 2024 – – – – – 1787(1) – –
Cavallo et al. 2024 1.65 3.53 – 47 -1.080 – – –
Hunt & Reffert 2023 2.45 3.11 1.89 77 – – – –
Just et al. 2023 – – – 617 – 4169 – –
Jaehnig et al. 2021 2.94(1) – – – – – – –
Rain et al. 2021 2.79 1.40 – 398 – – – 0
Dias et al. 2021 2.37 2.73 – 155 0.326 – – –
Cantat-Gaudin et al. 2020 2.68 2.80 – 200 – – – –
Cantat-Gaudin & Anders 2020 2.79 – – – – – – –
Soubiran et al. 2018 2.79 – – – – – – –
Cantat-Gaudin et al. 2018 2.79 – – – – – – –
Kharchenko et al. 2016 2.97 2.26 – 617 – – – –
Kharchenko et al. 2013 2.97 2.26 – 617 – – – –
van den Bergh 2006 2.60 1.40 – 398 – – – –
Dias et al. 2002 2.60 1.40 – 398 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0033 31.8 276.79 -12.04 0.36 -0.34 -2.98 39.07 0.0

πŸ’‘ Note: The % column shows the percentage of members that Collinder 379 shares with each listed object.

Visualization
ℹ️
Collinder 379 UCC
Collinder 379 HUNT23
Collinder 379 CANTAT20
Galactocentric position diagram