CWNU 1093

0.20 UTI

0.35

C_N

0.06

C_dens

0.38

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 35

Core radius and density 2.0 [pc], 0.3 [pc^-2]

C3 classification CB

C_N 0.35 Poorly populated
C_dens 0.06 Very loose
C_C3 0.38 Low quality
C_lit 0.1 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 1093 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (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.

Close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.24 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.24 (50th percentile).

Data

🔍 Search references for CWNU 1093 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–	117.18	20.2	1.842	-6.881	-4.278	18.631
Yang et al.	2025	117.26	20.179	–	–	–	–
Zhang et al.	2024	117.26	20.179	–	–	–	–
Cavallo et al.	2024	116.827	20.426	1.812	–	–	–
Hunt & Reffert	2023	117.26	20.179	1.799	-6.956	-4.375	16.622
He et al.	2022	117.061	20.281	1.844	-6.906	-4.299	–

💡 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–	0.54	0.09	0.65	242	-0.101	–	–	–
Yang et al.	2025	–	–	–	240	-0.210⁽³⁾	–	–	–
Zhang et al.	2024	–	–	–	–	-0.101⁽¹⁾	–	–	–
Cavallo et al.	2024	0.55	0.32	–	251	0.170	–	–	–
Hunt & Reffert	2023	0.53	0.09	0.65	243	–	–	–	–
He et al.	2022	–	0.05	–	89	–	–	–	–

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

Visualization

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