ESO 589 26

(MWSC 2786)

0.83 UTI

0.82

C_N

1.0

C_dens

0.75

C_C3

0.78

C_lit

1.0

C_dup

N₅₀ (P>50% members) 278

Stellar density (N₅₀/rad) 34.3 [N/pc²]

C3 classification AB

C_N 0.82 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.78 Well-studied
C_dup 1.0 Unique

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MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, 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, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.

Relatively close High extinction Near-solar metallicity Young

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Cavallo et al. (2024)
Silver sample.

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

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	99999–	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	–
Morales et al.	2013	270.558	-21.915	–	–	–	–
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]	B_frac	BSS
UCC	99999–	2.43	3.55	2.46	89	-0.387	713	–	–
Almeida et al.	2025	2.17	3.17	–	249	–	713	–	–
Hunt & Reffert	2024	–	–	–	–	–	2478⁽¹⁾	–	–
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	–	–	–	–

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

Visualization

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