ESO 139 13

(MWSC 2646)

0.18 UTI

0.0

C_N

0.06

C_dens

0.12

C_C3

0.35

C_lit

1.0

C_dup

N_m (P>50%) 20

Core radius and density 3.1 [pc], 0.3 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.06 Very loose
C_C3 0.12 Very low quality
C_lit 0.35 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

ESO 139 13 is a sparse, very loose object of very 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 near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.61 kpc) differs significantly from the median photometric distance (~1.50 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 Near-solar metallicity Intermediate age

Data

🔍 Search references for ESO 139 13 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	264.411	-58.125	0.277	-1.074	-4.511	-47.148
Just et al.	2023	264.445	-58.146	–	–	–	–
Bica et al.	2019	264.411	-58.129	–	–	–	–
Dib et al.	2018	264.457	-58.145	–	–	–	–
Sampedro et al.	2017	264.421	-58.13	–	0.29	-2.48	–
Joshi et al.	2016	264.457	-58.145	–	–	–	–
Kharchenko et al.	2016	264.445	-58.146	–	–	–	–
Dias et al.	2014	264.421	-58.13	–	-0.72	-2.69	–
Kharchenko et al.	2013	264.457	-58.145	–	-1.06	0.3	-33.9
Bukowiecki et al.	2011	264.429	-58.156	–	–	–	–
Piskunov et al.	2008	264.411	-58.129	–	–	–	–
Kharchenko et al.	2005	264.42	-58.13	–	-0.57	1.57	–
Dias et al.	2002	264.421	-58.13	–	-0.72	-2.69	-33.9

💡 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–	1.5	0.63	–	603	-0.320	208	–	–
Just et al.	2023	–	–	–	603	–	208	–	–
Dib et al.	2018	1.50	–	–	603	–	–	–	–
Joshi et al.	2016	1.50	0.63	–	603	–	30	–	–
Kharchenko et al.	2016	1.50	0.63	–	603	–	–	–	–
Kharchenko et al.	2013	1.50	0.63	–	603	-0.320	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	235	–	–
Bukowiecki et al.	2011	1.71⁽¹⁾	0.54	–	891	–	–	–	–
Piskunov et al.	2008	1.50	0.63	–	603	–	–	–	–
Kharchenko et al.	2005	1.50	0.63	–	603	–	–	–	–
Dias et al.	2002	1.50	0.63	–	603	–	–	–	–

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

Visualization

ℹ️