ESO 021 06

(MWSC 2208)

0.25 UTI

0.0

C_N

0.1

C_dens

0.25

C_C3

0.45

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 0.5 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.1 Very loose
C_C3 0.25 Low quality
C_lit 0.45 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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ESO 021 06 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, well below the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.04 kpc) differs significantly from the median photometric distance (~2.19 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Low extinction Massive Near-solar metallicity Old

Data

🔍 Search references for ESO 021 06 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–	213.701	-78.502	0.248	-8.956	-3.901	–
Just et al.	2023	213.945	-78.512	–	–	–	–
Bica et al.	2019	213.959	-78.503	–	–	–	–
Kharchenko et al.	2016	213.945	-78.512	–	–	–	–
Dias et al.	2014	213.967	-78.503	–	-3.1	-4.33	–
Kharchenko et al.	2013	213.966	-78.515	–	-3.04	-5.85	–
Bukowiecki et al.	2011	213.942	-78.513	–	–	–	–
Dias et al.	2002	213.967	-78.503	–	-2.81	-3.68	–

💡 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–	2.185	0.485	–	3162	-0.050	1012	–	–
Just et al.	2023	–	–	–	3162	–	1714	–	–
Kharchenko et al.	2016	2.47	0.32	–	3162	–	–	–	–
Kharchenko et al.	2013	2.47	0.32	–	3162	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	310	–	–
Bukowiecki et al.	2011	1.90⁽¹⁾	0.65	–	1259	–	–	–	–
Dias et al.	2002	1.22	3.19	–	2239	-0.050	–	–	–

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

Visualization

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