CWNU 4

0.15 UTI

0.57

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

0.33

C_dup

C3 classification BA

Number of members (P>50%) 64

Radius (P>50% members) 4.2 [arcmin]

C_N 0.57 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.33 Possibly duplicate

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

Overview

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CWNU 4 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by high extinction. It is catalogued as a metal-rich, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

⚠️ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close High extinction Metal-rich Intermediate age

Data

🔍 Search references for CWNU 4 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	–	259.846	-39.065	0.586	0.986	-1.136	–
He et al.	2022	259.846	-39.069	0.6	0.99	-1.14	–

💡 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.	2022	1.66	3.12	–	251	0.680	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 13634	87.5	259.84	-39.06	0.59	0.99	-1.13	–	0.03
OC 0681	67.2	259.83	-39.06	0.58	0.99	-1.13	–	0.05
VVV 100	60.9	259.83	-39.06	0.58	0.99	-1.13	–	0.43

💡 Note: The % column shows the percentage of members that CWNU 4 shares with each listed object.

Visualization

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