ESO 559 02

(MWSC 1170)

0.06 UTI

0.0

C_N

0.03

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 12

Radius (P>50% members) 5.4 [arcmin]

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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ESO 559 02 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by high extinction. It is catalogued as a young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~6.04 kpc) differs significantly from the median photometric distance (~17.78 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.

Extremely distant High extinction Young

Data

🔍 Search references for ESO 559 02 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	–	109.541	-18.592	0.166	-0.824	1.608	–
He et al.	2023	109.523	-18.596	0.098	-0.598	1.193	–
Bica et al.	2019	109.525	-18.59	–	–	–	–
Dias et al.	2002	109.521	-18.595	–	-3.56	5.53	–

💡 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
He et al.	2023	17.78	3.70	–	20	–	–	–	–

Visualization

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