CWNU 1639

0.37 UTI

0.0

C_N

0.98

C_dens

0.38

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Radius (P>50% members) 2.6 [arcmin]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.98 Very dense
C_C3 0.38 Low quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

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

Overview

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CWNU 1639 is a sparse, very dense object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, intermediate-age cluster (see Parameters). It was recently reported in the literature.

Relatively close Moderate extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 1639 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–	331.562	59.525	0.348	-1.791	-2.465	-52.44
Hunt & Reffert	2024	331.548	59.518	0.352	-1.786	-2.456	-52.382
Cavallo et al.	2024	331.579	59.518	0.352	–	–	–
Hunt & Reffert	2023	331.548	59.518	0.352	-1.786	-2.456	-52.382
He et al.	2023	331.58	59.512	0.359	-1.8	-2.464	-52.86

💡 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–	2.83	2.46	0.97	240	0.620	263	–	–
Hunt & Reffert	2024	–	–	–	–	–	263⁽¹⁾	–	–
Cavallo et al.	2024	2.92	2.21	–	240	0.620	–	–	–
Hunt & Reffert	2023	2.83	2.46	0.97	143	–	–	–	–
He et al.	2023	2.57	2.70	–	251	–	–	–	–

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

Visualization

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