ESO 261 07

(MWSC 1664)

0.13 UTI

0.0

C_N

0.06

C_dens

0.25

C_C3

0.16

C_lit

1.0

C_dup

N_m (P>50%) 20

Core radius and density 3.9 [pc], 0.3 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.06 Very loose
C_C3 0.25 Low quality
C_lit 0.16 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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ESO 261 07 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature.

⚠️ 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.

Distant High extinction Old

Data

🔍 Search references for ESO 261 07 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–	141.071	-44.69	0.262	-5.574	4.542	–
Just et al.	2023	141.144	-44.666	–	–	–	–
Bica et al.	2019	141.081	-44.702	–	–	–	–
Sampedro et al.	2017	141.088	-44.705	–	-2.56	2.18	–
Kharchenko et al.	2016	141.144	-44.666	–	–	–	–
Dias et al.	2014	141.087	-44.705	–	-2.84	2.23	–
Kharchenko et al.	2013	141.15	-44.67	–	-11.29	5.56	–
Dias et al.	2002	141.088	-44.705	–	-2.84	2.23	–

💡 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–	3.36	3.61	–	1000	–	290	–	–
Just et al.	2023	–	–	–	1000	–	290	–	–
Kharchenko et al.	2016	3.36	3.61	–	1000	–	–	–	–
Kharchenko et al.	2013	3.36	3.61	–	1000	–	–	–	–
Dias et al.	2002	3.36	3.61	–	1000	–	–	–	–

Visualization

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