ESO 561 05

(MWSC 1402)

0.16 UTI

0.0

C_N

0.03

C_dens

0.12

C_C3

0.32

C_lit

1.0

C_dup

N_m (P>50%) 20

Core radius and density 2.6 [pc], 0.1 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.12 Very low quality
C_lit 0.32 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 561 05 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.23 kpc) differs significantly from the median photometric distance (~2.77 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 Old

Data

🔍 Search references for ESO 561 05 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–	119.824	-22.717	0.236	-2.366	1.888	89.143
Just et al.	2023	119.823	-22.687	–	–	–	–
Bica et al.	2019	119.821	-22.689	–	–	–	–
Dias et al.	2018	–	–	–	-2.92	1.66	–
Dib et al.	2018	119.829	-22.69	–	–	–	–
Loktin & Popova	2017	119.835	-22.692	–	-0.334	3.581	–
Sampedro et al.	2017	119.829	-22.692	–	-3.63	3.14	–
Kharchenko et al.	2016	119.823	-22.687	–	–	–	–
Dias et al.	2014	119.829	-22.692	–	-3.58	3.85	–
Kharchenko et al.	2013	119.829	-22.69	–	1.11	3.79	–
Bukowiecki et al.	2011	119.825	-22.696	–	–	–	–
Dias et al.	2002	119.829	-22.692	–	-3.58	3.85	–

💡 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–	2.77	0.46	–	1000	–	312	–	–
Just et al.	2023	–	–	–	1000	–	265	–	–
Dib et al.	2018	1.86	–	–	1000	–	–	–	–
Loktin & Popova	2017	4.24	0.00	–	832	–	–	–	–
Kharchenko et al.	2016	1.86	0.46	–	1000	–	–	–	–
Kharchenko et al.	2013	1.86	0.46	–	1000	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	358	–	–
Bukowiecki et al.	2011	3.69⁽¹⁾	1.14	–	224	–	–	–	–
Dias et al.	2002	3.68	1.17	–	224	–	–	–	–

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

Visualization

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