CWNU 4028

0.07 UTI

0.0

C_N

0.02

C_dens

0.38

C_C3

0.0

C_lit

0.92

C_dup

C3 classification BC

Number of members (P>50%) 16

Radius (P>50% members) 4.7 [arcmin]

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 0.92 Very likely unique

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

Overview

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CWNU 4028 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~9.43 kpc) differs significantly from the median photometric distance (~6.76 kpc).

Note: This is very likely 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=0.92) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Very distant Moderate extinction Intermediate age

Data

🔍 Search references for CWNU 4028 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	–	102.001	-6.296	0.106	-0.186	0.56	61.529
He et al.	2023	101.983	-6.285	0.114	-0.173	0.604	74.82

💡 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	6.76	1.55	–	251	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 1726	8.0	101.88	-6.38	0.13	-0.37	0.53	–	0.46

💡 Note: The % column shows the percentage of members that CWNU 4028 shares with each listed object.

Visualization

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