CWNU 1438

0.43 UTI

0.3

C_N

0.88

C_dens

0.38

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 30

Stellar density (N₅₀/rad) 4.4 [N/pc²]

C3 classification BC

C_N 0.3 Poorly populated
C_dens 0.88 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

ℹ️

CWNU 1438 is a poorly populated, dense object of low C3 quality. Its parallax locates it at a moderate distance, below 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 metallicity parameter (see Parameters). It was recently reported in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 1438 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	102.914	-10.506	0.4	-1.458	3.551	69.624
Hu & Soubiran	2025	102.971	-10.494	–	–	–	–
Hunt & Reffert	2024	102.892	-10.503	0.407	-1.45	3.533	69.635
Cavallo et al.	2024	102.971	-10.494	0.403	–	–	–
Hunt & Reffert	2023	102.892	-10.503	0.407	-1.45	3.533	69.635
He et al.	2023	102.93	-10.511	0.393	-1.461	3.554	69.62

💡 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–	2.29	2.23	2.14	708	0.100	240	–	–
Hu & Soubiran	2025	–	–	–	–	-0.140⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	240⁽¹⁾	–	–
Cavallo et al.	2024	2.31	2.23	–	794	0.340	–	–	–
Hunt & Reffert	2023	2.26	2.09	2.14	516	–	–	–	–
He et al.	2023	2.29	2.50	–	708	–	–	–	–

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

Visualization

ℹ️

1 2