ESO 456 05

(MWSC 2734; AL 2; Andrews-Lindsay 2)

0.21 UTI

0.0

C_N

0.07

C_dens

0.5

C_C3

0.25

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 15

Radius (P>50% members) 6.2 [arcmin]

C_N 0.0 Sparse
C_dens 0.07 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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ESO 456 05 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by very high extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature, with no articles listed in the last 7 years.

(*): The parallax distance estimate (~3.59 kpc) differs significantly from the median photometric distance (~1.83 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 Very high extinction Old

Data

🔍 Search references for ESO 456 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	–	268.226	-29.869	0.278	-0.87	-2.801	–
Bica et al.	2019	268.282	-29.905	–	–	–	–
Kharchenko et al.	2016	268.251	-29.874	–	–	–	–
Dias et al.	2014	268.258	-29.893	–	-1.62	-2.36	–
Kharchenko et al.	2013	268.26	-29.873	–	1.57	3.22	–

💡 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]	Bfr	BSS
Kharchenko et al.	2016	1.83	5.68	–	1000	–	–	–	–
Kharchenko et al.	2013	1.83	5.68	–	1000	–	–	–	–

Visualization

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