CWNU 1018

0.52 UTI

0.26

C_N

1.0

C_dens

0.75

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 26

Stellar density (N₅₀/rad) 6.9 [N/pc²]

C3 classification BA

C_N 0.26 Poorly populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 1018 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a very close distance, 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.

Very close Low extinction Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 83 along with CWNU_1010.

Palma et al. (2025)
Part of multiple system G25, along with CWNU_1010 and HSC_1733.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for CWNU 1018 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–	68.677	-8.596	6.051	-9.447	-4.648	20.404
Zhang et al.	2024	68.621	-8.431	–	–	–	–
Cavallo et al.	2024	70.274	-9.564	5.955	–	–	–
Hunt & Reffert	2023	68.621	-8.431	5.938	-9.856	-4.139	17.555
He et al.	2022	69.129	-8.632	6.055	-9.469	-4.717	–

💡 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–	0.17	0.2	0.26	138	0.169	–	–	–
Liu et al.	2025	0.19	0.05	–	112	–	–	–	–
Zhang et al.	2024	–	–	–	–	0.067⁽¹⁾	–	–	–
Cavallo et al.	2024	0.17	0.37	–	135	0.270	–	–	–
Hunt & Reffert	2023	0.17	0.03	0.26	153	–	–	–	–
He et al.	2022	–	0.35	–	141	–	–	–	–

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

Visualization

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