CWNU 187

0.04 UTI

0.0

C_N

0.04

C_dens

0.5

C_C3

0.0

C_lit

0.4

C_dup

N_m (P>50%) 23

Core radius and density 3.2 [pc], 0.2 [pc^-2]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.4 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 187 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is rarely studied 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.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.4) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Close Low extinction Near-solar metallicity Young

Data

🔍 Search references for CWNU 187 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–	340.565	49.147	1.198	-1.825	-5.571	-14.41
He et al.	2022	340.078	49.039	1.19	-1.8	-5.59	-13.7

💡 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–	0.91	0.38	–	79	0.295	–	–	–
He et al.	2022	0.91	0.38	–	79	0.295	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 280	60.0	341.03	49.46	1.19	-1.76	-5.47	-12.73	0.25

💡 Note: The % column shows the percentage of members that CWNU 187 shares with each listed object.

Visualization

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