Melotte 86

(Collinder 180; VDBH 26; NGC 2567; MWSC 1467; OCL 708; vdBergh-Hagen 26; ESO 431 03; FSR 1354; FoF 385)

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0.96 UTI
0.82
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 294
Stellar density (N50/rad) 27.4 [N/pc2]
C3 classification AA
  • CN 0.82 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¸
Melotte 86 is a 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 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.

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

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Melotte 86 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 124.641 -30.621 0.568 -2.966 2.608 34.588
Li et al. 2025 124.645 -30.631 0.542 -2.955 2.58 –
Wei et al. 2025 124.638 -30.618 0.57 -2.958 2.623 –
Almeida et al. 2025 124.656 -30.626 – – – –
Hunt & Reffert 2024 124.65 -30.643 0.572 -2.961 2.614 35.857
Cavallo et al. 2024 124.639 -30.598 0.572 – – –
Hunt & Reffert 2023 124.65 -30.643 0.572 -2.961 2.614 35.857
Cordoni et al. 2023 124.656 -30.626 0.539 -2.961 2.579 –
Just et al. 2023 124.637 -30.648 – – – –
Jaehnig et al. 2021 124.639 -30.625 0.576 -2.993 2.586 –
Rain et al. 2021 124.645 -30.631 0.542 -2.955 2.58 –
Dias et al. 2021 124.656 -30.626 0.539 -2.961 2.579 36.59
Cantat-Gaudin et al. 2020 124.645 -30.631 0.542 -2.955 2.58 –
Cantat-Gaudin & Anders 2020 124.645 -30.631 0.542 -2.955 2.58 –
Liu & Pang 2019 124.627 -30.614 0.539 -3.032 2.566 –
Bossini et al. 2019 124.645 -30.631 – – – –
Soubiran et al. 2018 124.645 -30.631 – – – 36.79
Bica et al. 2019 124.639 -30.631 – – – –
Cantat-Gaudin et al. 2018 124.645 -30.631 0.542 -2.955 2.58 –
Loktin & Popova 2017 124.635 -30.639 – -3.2 1.96 35.8
Kharchenko et al. 2016 124.637 -30.648 – – – –
Dias et al. 2014 124.633 -30.64 – -1.28 2.07 –
Kharchenko et al. 2013 124.642 -30.65 – -1.85 2.32 35.8
Gozha et al. 2012 124.633 -30.64 – – – –
Piskunov et al. 2008 124.629 -30.636 – – – –
Kharchenko et al. 2007 124.63 -30.64 – 0.17 – –
van den Bergh 2006 124.633 -30.633 – – – –
Kharchenko et al. 2005 124.63 -30.64 – -1.52 2.97 –
Kharchenko et al. 2003 124.65 -30.63 – -1.1 2.5 –
Chen et al. 2003 124.61 -30.648 – – – –
Dias et al. 2002 124.633 -30.64 – -1.28 2.07 36.15

💡 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– 1.68 0.4 0.43 442 -0.040 516 0.375 0.0
Li et al. 2025 1.69 0.19 – 592 0.147 – – –
Wei et al. 2025 1.97 0.33 – 576 0.250 768 0.49 –
Almeida et al. 2025 1.60 0.37 – 501 – 232 – –
Hunt & Reffert 2024 – – – – – 1271(1) – –
Cavallo et al. 2024 1.75 0.32 – 490 0.300 – – –
Hunt & Reffert 2023 1.61 0.11 0.43 889 – – – –
Cordoni et al. 2023 1.60 0.37 – 501 -0.062 1116 0.26 0.00
Just et al. 2023 – – – 442 – 207 – –
Jaehnig et al. 2021 1.73(1) – – – – – – –
Rain et al. 2021 1.75 0.46 – 347 – – – 0
Dias et al. 2021 1.60 0.37 – 501 -0.062 – – –
Cantat-Gaudin et al. 2020 1.73 0.49 – 316 – – – –
Cantat-Gaudin & Anders 2020 1.75 – – – – – – –
Liu & Pang 2019 – – – 708 -0.250 – – –
Bossini et al. 2019 1.79 0.47 – 348 -0.040 – – –
Soubiran et al. 2018 1.75 – – – – – – –
Cantat-Gaudin et al. 2018 1.75 – – – – – – –
Loktin & Popova 2017 1.69 0.40 – 295 – – – –
Kharchenko et al. 2016 1.68 0.40 – 442 – – – –
Kharchenko et al. 2013 1.68 0.40 – 442 -0.075 – – –
Gozha et al. 2012 1.68 – – 294 0.030 263 – –
Piskunov et al. 2008 1.68 0.40 – 437 – – – –
van den Bergh 2006 1.68 0.40 – 295 – – – –
Kharchenko et al. 2005 1.68 0.40 – 437 – – – –
Kharchenko et al. 2003 1.67 0.40 – – – – – –
Chen et al. 2003 1.68 0.40 – 290 -0.090(1) – – –
Dias et al. 2002 1.68 0.40 – 294 0.000 – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Theia 3423 7.5 124.7 -30.58 0.59 -3.02 2.63 – 0.03

💡 Note: The % column shows the percentage of members that Melotte 86 shares with each listed object.

Visualization
ℹī¸
Melotte 86 UCC
Melotte 86 HUNT23
Melotte 86 CANTAT20
Galactocentric position diagram