Melotte 83

(Collinder 176; NGC 2539; MWSC 1439; OCL 611; FoF 2043)

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1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 743
Stellar density (N50/rad) 37.3 [N/pc2]
C3 classification AA
  • CN 1.0 Very 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
Melotte 83 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for Melotte 83 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 122.662 -12.833 0.756 -2.323 -0.546 28.683
Li et al. 2025 122.658 -12.834 0.754 -2.331 -0.584 –
Hu & Soubiran 2025 122.668 -12.834 – – – –
Almeida et al. 2025 122.657 -12.835 – – – –
Hunt & Reffert 2024 122.664 -12.827 0.758 -2.326 -0.543 28.626
Cavallo et al. 2024 122.668 -12.834 0.759 – – –
Hunt & Reffert 2023 122.664 -12.827 0.758 -2.326 -0.543 28.626
Almeida et al. 2023 122.646 -12.864 – – – –
Just et al. 2023 122.663 -12.838 – – – –
Tarricq et al. 2022 122.637 -12.844 0.763 -2.326 -0.538 –
Jaehnig et al. 2021 122.649 -12.827 0.784 -2.338 -0.572 –
Rain et al. 2021 122.658 -12.834 0.754 -2.331 -0.584 –
Dias et al. 2021 122.657 -12.835 0.76 -2.332 -0.592 29.24
Cantat-Gaudin et al. 2020 122.658 -12.834 0.754 -2.331 -0.584 –
SΓ‘nchez et al. 2020 122.654 -12.818 – -2.384 -0.686 –
Cantat-Gaudin & Anders 2020 122.658 -12.834 0.754 -2.331 -0.584 –
Liu & Pang 2019 122.664 -12.843 0.762 -2.319 -0.58 –
Soubiran et al. 2018 122.658 -12.834 – – – 29.18
Bica et al. 2019 122.669 -12.826 – – – –
Cantat-Gaudin et al. 2018 122.658 -12.834 0.754 -2.331 -0.584 –
Loktin & Popova 2017 122.655 -12.84 – -2.115 -2.223 26.1
Kharchenko et al. 2016 122.663 -12.838 – – – –
Dias et al. 2014 122.654 -12.818 – -3.2 -1.24 –
Kharchenko et al. 2013 122.67 -12.84 – -2.28 -1.91 26.1
Gozha et al. 2012 122.654 -12.818 – – – –
Piskunov et al. 2008 122.666 -12.84 – – – –
Kharchenko et al. 2007 122.65 -12.82 – 0.5 – 26.12
Piskunov et al. 2007 122.666 -12.84 – – – –
van den Bergh 2006 122.675 -12.833 – – – –
Kharchenko et al. 2005 122.67 -12.84 – -3.37 -1.87 26.12
Kharchenko et al. 2003 122.67 -12.84 – -4.0 -1.77 –
Chen et al. 2003 122.921 -13.246 – -2.5 -1.22 29.3
Dias et al. 2002 122.654 -12.818 – -3.2 -1.24 28.89

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– 1.28 0.25 0.33 562 0.072 1786 0.44 0.0
Li et al. 2025 1.20 0.25 – 851 -0.148 – – –
Hu & Soubiran 2025 – – – – -0.130(5) – – –
Almeida et al. 2025 1.24 0.21 – 764 – 1367 – –
Hunt & Reffert 2024 – – – – – 2026(1) – –
Cavallo et al. 2024 1.33 0.33 – 661 0.210 – – –
Hunt & Reffert 2023 1.21 0.08 0.33 1076 – – – –
Almeida et al. 2023 1.24 0.14 – 776 -0.005 1152(1) 0.44 –
Just et al. 2023 – – – 543 – 989 – –
Tarricq et al. 2022 1.20 – – 708 – – – –
Jaehnig et al. 2021 1.27(1) – – – – – – –
Rain et al. 2021 1.28 0.25 – 372 – – – 0
Dias et al. 2021 1.24 0.21 – 764 0.015 – – –
Cantat-Gaudin et al. 2020 1.23 0.11 – 692 – – – –
Cantat-Gaudin & Anders 2020 1.28 – – – – – – –
Liu & Pang 2019 – – – 912 0.000 – – –
Soubiran et al. 2018 1.28 – – – – – – –
Cantat-Gaudin et al. 2018 1.28 – – – – – – –
Loktin & Popova 2017 1.39 0.26 – 379 – – – –
Kharchenko et al. 2016 1.23 0.45 – 543 – – – –
Kharchenko et al. 2013 1.23 0.45 – 543 0.130 – – –
Gozha et al. 2012 1.36 – – 372 0.130 2455 – –
Piskunov et al. 2008 1.36 0.25 – 562 – 5483(1) – –
Piskunov et al. 2007 1.36 0.25 – 562 – 1786 – –
van den Bergh 2006 1.36 0.25 – 372 – – – –
Kharchenko et al. 2005 1.36 0.25 – 562 – – – –
Kharchenko et al. 2003 1.37 0.25 – – – – – –
Chen et al. 2003 1.36 0.25 – 370 0.130(1) – – –
Dias et al. 2002 1.36 0.25 – 372 0.130 – – –

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

Visualization
ℹ️
Melotte 83 UCC
Melotte 83 HUNT23
Melotte 83 CANTAT20
Galactocentric position diagram