Melotte 72

(Collinder 156; MWSC 1293; OCL 581; FSR 1215; FoF 586)

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0.93 UTI
0.88
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 443
Radius (P>50% members) 4.7 [arcmin]
  • CN 0.88 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 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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Melotte 72 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, old 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.

Relatively close Low extinction Massive Near-solar metallicity Old

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Melotte 72 in: SciX Simbad
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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 114.624 -10.702 0.377 -4.152 3.684 70.74
Li et al. 2025 114.618 -10.698 0.369 -4.159 3.68 –
Hu & Soubiran 2025 114.622 -10.7 – – – –
Almeida et al. 2025 114.619 -10.701 – – – –
Hunt & Reffert 2024 114.619 -10.698 0.375 -4.15 3.692 60.933
Cavallo et al. 2024 114.622 -10.7 0.375 – – –
Hunt & Reffert 2023 114.619 -10.698 0.375 -4.15 3.692 60.933
Almeida et al. 2023 114.622 -10.703 – – – –
Just et al. 2023 114.613 -10.698 – – – –
Dias et al. 2021 114.619 -10.701 0.372 -4.18 3.681 71.304
Cantat-Gaudin et al. 2020 114.618 -10.698 0.369 -4.159 3.68 –
Cantat-Gaudin & Anders 2020 114.618 -10.698 0.369 -4.159 3.68 –
Liu & Pang 2019 114.626 -10.701 0.381 -4.158 3.679 –
Soubiran et al. 2018 114.618 -10.698 – – – 71.5
Bica et al. 2019 114.609 -10.7 – – – –
Cantat-Gaudin et al. 2018 114.618 -10.698 0.369 -4.159 3.68 –
Loktin & Popova 2017 114.63 -10.705 – 0.358 1.77 –
Kharchenko et al. 2016 114.613 -10.698 – – – –
Dias et al. 2014 114.6 -10.683 – -3.86 -0.26 –
Kharchenko et al. 2013 114.619 -10.7 – -0.04 0.48 –
Gozha et al. 2012 114.6 -10.683 – – – –
Kharchenko et al. 2003 114.31 -10.57 – -1.33 0.19 –
Dias et al. 2002 114.6 -10.683 – -3.86 -0.26 –

💡 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] Bfr BSS
Li et al. 2025 2.52 0.56 – 1187 -0.218 – – –
Hu & Soubiran 2025 – – – – -0.200* – – –
Almeida et al. 2025 2.43 0.54 – 1197 – 757 – –
Hunt & Reffert 2024 – – – – – 1553* – –
Cavallo et al. 2024 2.42 0.40 – 1202 0.110 – – –
Hunt & Reffert 2023 2.37 0.14 0.53 1276 – – – –
Almeida et al. 2023 2.58 0.23 – 1250 0.066 709* 0.68 –
Just et al. 2023 – – – 733 – 2917 – –
Dias et al. 2021 2.43 0.54 – 1197 -0.140 – – –
Cantat-Gaudin et al. 2020 2.68 0.41 – 977 – – – –
Cantat-Gaudin & Anders 2020 2.51 – – – – – – –
Liu & Pang 2019 – – – 1150 0.000 – – –
Soubiran et al. 2018 2.51 – – – – – – –
Cantat-Gaudin et al. 2018 2.51 – – – – – – –
Loktin & Popova 2017 3.69 0.11 – 1349 – – – –
Kharchenko et al. 2016 3.96 0.71 – 733 – – – –
Kharchenko et al. 2013 3.96 0.71 – 733 -0.380 – – –
Gozha et al. 2012 3.98 – – 603 -0.380 – – –
Kharchenko et al. 2003 0.91 0.31 – – – – – –
Dias et al. 2002 3.98 0.62 – 603 -0.380 – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Collinder 467 5.6 114.73 -10.65 0.37 -4.16 3.71 70.4 0.0

💡 Note: The % column shows the percentage of members that Melotte 72 shares with each listed object.

Visualization
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Melotte 72 UCC
Melotte 72 HUNT23
Melotte 72 CANTAT20
Galactocentric position diagram