CWNU 4257

0.05 UTI

0.0

C_N

0.02

C_dens

0.75

C_C3

0.0

C_lit

0.32

C_dup

C3 classification AB

Number of members (P>50%) 22

Radius (P>50% members) 9.3 [arcmin]

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.32 Possibly duplicate

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

Overview

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CWNU 4257 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

Distant Moderate extinction Young

Data

🔍 Search references for CWNU 4257 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	–	99.391	13.299	0.202	-0.026	-0.272	–
He et al.	2023	99.387	13.304	0.206	-0.003	-0.281	–

💡 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	4.79	1.45	–	20	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 1583	68.0	99.41	13.3	0.21	0.02	-0.29	–	0.26

💡 Note: The % column shows the percentage of members that CWNU 4257 shares with each listed object.

Visualization

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