CWNU 459

0.38 UTI

0.45

C_N

0.21

C_dens

0.75

C_C3

0.3

C_lit

0.96

C_dup

N₅₀ (P>50% members) 45

Stellar density (N₅₀/rad) 1.0 [N/pc²]

C3 classification AB

C_N 0.45 Poorly populated
C_dens 0.21 Very loose
C_C3 0.75 High quality
C_lit 0.3 Poorly studied
C_dup 0.96 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 459 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, metal-rich, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.

Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Massive Metal-rich Young

Liu et al. (2025)
Classified as primordial binary cluster 73 along with UBC_1177.

Palma et al. (2025)
Classified as optical pair P206, along with UBC_1177.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 459 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–	347.946	60.97	0.334	-4.44	-1.789	-68.975
Hunt & Reffert	2024	348.054	60.97	0.336	-4.422	-1.799	-55.471
Cavallo et al.	2024	347.921	61.013	0.336	–	–	–
Hunt & Reffert	2023	348.054	60.97	0.336	-4.422	-1.799	-55.471
He et al.	2022	348.048	61.037	0.34	-4.44	-1.78	–

💡 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–	2.7	2.125	2.2	23	0.608	1172	–	–
Liu et al.	2025	6.19	0.80	–	19	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1172⁽¹⁾	–	–
Cavallo et al.	2024	2.67	2.36	–	27	0.300	–	–	–
Hunt & Reffert	2023	2.73	2.27	2.20	19	–	–	–	–
He et al.	2022	2.40	1.98	–	63	0.916	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FSR 0425	4.4	348.56	61.22	0.35	-4.43	-1.86	–	0.27
CWWDL 2573	2.2	347.57	60.95	0.32	-4.13	-1.97	–	0.03

💡 Note: The % column shows the percentage of members that CWNU 459 shares with each listed object.

Visualization

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