CWNU 1140

0.32 UTI

0.0

C_N

0.64

C_dens

0.38

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 21

Stellar density (N₅₀/rad) 3.2 [N/pc²]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.64 Moderately dense
C_C3 0.38 Low 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 1140 is a sparse, moderately dense object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is poorly studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 1140 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–	64.155	51.182	0.814	0.866	-2.113	-16.484
Hu & Soubiran	2025	64.134	51.167	–	–	–	–
Hunt & Reffert	2024	64.247	51.184	0.808	0.827	-2.09	-15.654
Cavallo et al.	2024	64.134	51.167	0.81	–	–	–
Hunt & Reffert	2023	64.247	51.184	0.808	0.827	-2.09	-15.654
He et al.	2022	64.192	51.143	0.838	0.849	-2.104	–

💡 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–	1.22	1.14	0.27	117	0.085	126	–	–
Hu & Soubiran	2025	–	–	–	–	-0.130⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	126⁽¹⁾	–	–
Cavallo et al.	2024	1.26	1.14	–	692	0.300	–	–	–
Hunt & Reffert	2023	1.18	0.93	0.27	117	–	–	–	–
He et al.	2022	–	1.55	–	63	–	–	–	–

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

Visualization

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