CWNU 7

0.45 UTI

0.29

C_N

1.0

C_dens

0.38

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 29

Stellar density (N₅₀/rad) 12.2 [N/pc²]

C3 classification CB

C_N 0.29 Poorly populated
C_dens 1.0 Very 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 7 is a poorly populated, very dense object of low C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old 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 Low extinction Near-solar metallicity Old

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 7 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–	240.032	-59.103	0.755	-2.697	-1.042	-30.976
Hu & Soubiran	2025	240.061	-59.107	–	–	–	–
Hunt & Reffert	2024	240.093	-59.104	0.759	-2.686	-1.015	-14.689
Cavallo et al.	2024	240.062	-59.107	0.759	–	–	–
Hunt & Reffert	2023	240.093	-59.104	0.759	-2.686	-1.015	-14.689
He et al.	2022	240.025	-59.095	0.74	-2.72	-1.02	–

💡 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–	1.3	0.41	0.58	1057	0.440	90	–	–
Hu & Soubiran	2025	–	–	–	–	-0.290⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	90⁽¹⁾	–	–
Cavallo et al.	2024	1.30	0.18	–	2188	0.440	–	–	–
Hunt & Reffert	2023	1.25	0.41	0.58	1057	–	–	–	–
He et al.	2022	1.55	0.78	–	251	0.968	–	–	–

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

Visualization

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