CWNU 1934

0.21 UTI

0.0

C_N

0.79

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 3.9 [N/pc²]

C3 classification DB

C_N 0.0 Sparse
C_dens 0.79 Dense
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 1934 is a sparse, dense object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close High extinction Intermediate age

Data

🔍 Search references for CWNU 1934 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–	254.941	-42.396	0.602	0.343	-0.888	22.376
Hunt & Reffert	2024	254.952	-42.364	0.603	0.335	-0.91	29.46
Hunt & Reffert	2023	254.952	-42.364	0.603	0.335	-0.91	29.46
He et al.	2023	254.94	-42.402	0.601	0.34	-0.893	15.3

💡 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–	1.66	3.23	1.15	433	–	179	–	–
Hunt & Reffert	2024	–	–	–	–	–	179⁽¹⁾	–	–
Hunt & Reffert	2023	1.54	3.06	1.15	158	–	–	–	–
He et al.	2023	1.78	3.40	–	708	–	–	–	–

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

Visualization

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