CWNU 4340

0.05 UTI

0.0

C_N

0.01

C_dens

0.25

C_C3

0.0

C_lit

0.96

C_dup

C3 classification CC

Number of members (P>50%) 10

Radius (P>50% members) 5.2 [arcmin]

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 0.96 Unique

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

Overview

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CWNU 4340 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, above the mid-plane, affected by low extinction. It is catalogued as a very young cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~8.35 kpc) differs significantly from the median photometric distance (~12.88 kpc).

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.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.96) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Extremely distant Low extinction Very young

Data

🔍 Search references for CWNU 4340 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	–	78.193	41.293	0.12	0.419	-0.492	–
He et al.	2023	78.194	41.297	0.14	0.445	-0.477	–

💡 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]	Bfr	BSS
He et al.	2023	12.88	0.05	–	2	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 10749	4.0	77.78	41.66	0.22	0.35	-0.53	-44.68	0.03

💡 Note: The % column shows the percentage of members that CWNU 4340 shares with each listed object.

Visualization

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