ESO 589 26

(MWSC 2786)

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0.83 UTI
0.82
CN
1.0
Cdens
0.75
CC3
0.79
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 278
Radius (P>50% members) 3.3 [arcmin]
  • CN 0.82 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.79 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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ESO 589 26 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.
Relatively close High extinction Near-solar metallicity Young

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Silver sample.

Data
🔍 Search references for ESO 589 26 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 – 270.562 -21.927 0.337 -0.174 -2.717 -0.316
Almeida et al. 2025 270.561 -21.925 – – – –
Hunt & Reffert 2024 270.56 -21.918 0.329 -0.164 -2.729 12.017
Cavallo et al. 2024 270.56 -21.934 0.325 – – –
Hunt & Reffert 2023 270.56 -21.918 0.329 -0.164 -2.729 12.017
Just et al. 2023 270.562 -21.918 – – – –
Dias et al. 2021 270.561 -21.925 0.325 -0.203 -2.694 –
Cantat-Gaudin et al. 2020 270.56 -21.922 0.336 -0.216 -2.695 –
Cantat-Gaudin & Anders 2020 270.56 -21.922 0.336 -0.216 -2.695 –
Bica et al. 2019 270.565 -21.92 – – – –
Cantat-Gaudin et al. 2018 270.56 -21.922 0.336 -0.216 -2.695 –
Kharchenko et al. 2016 270.562 -21.918 – – – –
Dias et al. 2014 270.558 -21.915 – 0.33 -1.07 –
Kharchenko et al. 2013 270.57 -21.917 – 4.56 -4.12 –
Dias et al. 2002 270.558 -21.915 – 4.56 -4.12 –

💡 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
Almeida et al. 2025 2.17 3.17 – 249 – 713 – –
Hunt & Reffert 2024 – – – – – 2478* – –
Cavallo et al. 2024 2.34 4.49 – 89 -1.160 – – –
Hunt & Reffert 2023 2.70 4.15 2.46 89 – – – –
Just et al. 2023 – – – 3 – 455 – –
Dias et al. 2021 2.17 3.17 – 249 0.386 – – –
Cantat-Gaudin et al. 2020 2.67 3.15 – 200 – – – –
Cantat-Gaudin & Anders 2020 2.74 – – – – – – –
Cantat-Gaudin et al. 2018 2.74 – – – – – – –
Kharchenko et al. 2016 2.43 3.55 – 3 – – – –
Kharchenko et al. 2013 2.43 3.55 – 3 – – – –
Dias et al. 2002 2.43 3.55 – 3 – – – –

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

Visualization
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ESO 589 26 UCC
ESO 589 26 HUNT23
ESO 589 26 CANTAT20
Galactocentric position diagram