CWNU 3987

0.15 UTI

0.0

C_N

0.49

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 21

Core radius and density 1.1 [pc], 2.5 [pc^-2]

C3 classification DB

C_N 0.0 Sparse
C_dens 0.49 Loose
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 3987 is a sparse, loose object of low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by high extinction. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~5.41 kpc) differs significantly from the median photometric distance (~12.02 kpc).

⚠️ 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.

Extremely distant High extinction Young

Data

🔍 Search references for CWNU 3987 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–	293.855	16.971	0.185	-2.96	-5.847	45.577
He et al.	2023	293.855	16.966	0.177	-2.949	-5.839	45.58

💡 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–	12.02	5.0	–	50	–	–	–	–
He et al.	2023	12.02	5.00	–	50	–	–	–	–

Visualization

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