Melotte 97

(Collinder 208; VDBH 69; IC 2488; MWSC 1671; OCL 789; vdBergh-Hagen 69; ESO 166 14; FoF 675)

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1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 575
Radius (P>50% members) 10.5 [arcmin]
  • 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
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Melotte 97 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, below 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 and mass parameters (see Parameters). It is very well-studied in the literature.
Relatively close Low extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Melotte 97 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 141.869 -57.008 0.733 -7.731 5.742 -3.803
Li et al. 2025 141.857 -57.004 0.718 -7.761 5.698 –
Wei et al. 2025 141.843 -56.998 0.728 -7.718 5.732 –
Almeida et al. 2025 141.846 -57.019 – – – –
Hunt & Reffert 2024 141.887 -56.988 0.734 -7.742 5.748 -3.403
Cavallo et al. 2024 141.864 -57.026 0.734 – – –
Hunt & Reffert 2023 141.887 -56.988 0.734 -7.742 5.748 -3.403
Almeida et al. 2023 141.793 -57.036 – – – –
Cordoni et al. 2023 141.846 -57.019 0.724 -7.764 5.689 –
Just et al. 2023 141.91 -56.996 – – – –
Tarricq et al. 2022 141.902 -56.992 0.731 -7.736 5.747 –
Jaehnig et al. 2021 141.869 -56.996 0.754 -7.768 5.701 –
Rain et al. 2021 141.857 -57.004 0.718 -7.761 5.698 –
Dias et al. 2021 141.846 -57.019 0.724 -7.764 5.689 -3.269
Cantat-Gaudin et al. 2020 141.857 -57.004 0.718 -7.761 5.698 –
Cantat-Gaudin & Anders 2020 141.857 -57.004 0.718 -7.761 5.698 –
Liu & Pang 2019 141.843 -56.996 0.729 -7.758 5.689 –
Bossini et al. 2019 141.857 -57.004 – – – –
Soubiran et al. 2018 141.857 -57.004 – – – -1.42
Bica et al. 2019 141.907 -56.987 – – – –
Cantat-Gaudin et al. 2018 141.857 -57.004 0.718 -7.761 5.698 –
Loktin & Popova 2017 141.915 -57.0 – -3.11 4.55 -2.6
Kharchenko et al. 2016 141.91 -56.996 – – – –
Dias et al. 2014 141.908 -57.0 – -3.11 4.55 –
Kharchenko et al. 2013 141.915 -57.0 – -6.78 6.0 -2.6
Gozha et al. 2012 141.908 -57.0 – – – –
Piskunov et al. 2008 141.908 -57.001 – – – –
Kharchenko et al. 2007 141.91 -57.0 – 0.3 – –
Piskunov et al. 2007 141.908 -57.001 – – – –
van den Bergh 2006 141.9 -57.0 – – – –
Kharchenko et al. 2005 141.91 -57.0 – -7.03 5.82 –
Kharchenko et al. 2003 141.91 -56.98 – -6.85 7.76 –
Dias et al. 2002 141.908 -57.0 – -3.11 4.55 -1.84
Dambis 1999 141.908 -57.0 – – – –

💡 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 1.29 0.67 – 299 0.160 – – –
Wei et al. 2025 1.68 1.12 – 204 -0.250 981 0.53 –
Almeida et al. 2025 1.27 0.89 – 179 – 1337 – –
Hunt & Reffert 2024 – – – – – 1672* – –
Cavallo et al. 2024 1.32 0.88 – 166 0.260 – – –
Hunt & Reffert 2023 1.29 0.73 0.99 181 – – – –
Almeida et al. 2023 1.29 0.98 – 153 0.019 1190* 0.47 –
Cordoni et al. 2023 1.27 0.89 – 179 0.094 3029 0.45 0.00
Just et al. 2023 – – – 279 – 97 – –
Tarricq et al. 2022 1.29 – – 166 – – – –
Jaehnig et al. 2021 1.33* – – – – – – –
Rain et al. 2021 1.34 0.68 – 158 – – – 0
Dias et al. 2021 1.27 0.89 – 179 0.094 – – –
Cantat-Gaudin et al. 2020 1.32 0.67 – 162 – – – –
Cantat-Gaudin & Anders 2020 1.34 – – – – – – –
Liu & Pang 2019 – – – 105 0.250 – – –
Bossini et al. 2019 1.33 0.70 – 158 0.080 – – –
Soubiran et al. 2018 1.34 – – – – – – –
Cantat-Gaudin et al. 2018 1.34 – – – – – – –
Loktin & Popova 2017 1.48 1.00 – 25 – – – –
Kharchenko et al. 2016 1.14 0.64 – 279 – – – –
Kharchenko et al. 2013 1.14 0.64 – 279 0.100 – – –
Gozha et al. 2012 1.13 – – 130 0.100 1023 – –
Piskunov et al. 2008 1.13 0.71 – 339 – 410* – –
Piskunov et al. 2007 1.13 0.71 – 339 – 87 – –
van den Bergh 2006 1.13 0.71 – 129 – – – –
Kharchenko et al. 2005 1.13 0.71 – 339 – – – –
Kharchenko et al. 2003 1.14 0.71 – – – – – –
Dias et al. 2002 1.13 0.72 – 130 0.100 – – –
Dambis 1999 1.08 0.72 – 126 – – – –

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

Visualization
ℹī¸
Melotte 97 UCC
Melotte 97 HUNT23
Melotte 97 CANTAT20
Galactocentric position diagram