CWNU 1690

0.21 UTI

0.0

C_N

0.54

C_dens

0.5

C_C3

0.0

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 22

Radius (P>50% members) 4.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.54 Moderately dense
C_C3 0.5 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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CWNU 1690 is a sparse, moderately dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature.

⚠️ 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.

Relatively close Moderate extinction Young

Data

🔍 Search references for CWNU 1690 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	–	240.875	-55.562	0.468	-2.323	-4.105	–
He et al.	2023	240.924	-55.589	0.468	-2.323	-4.092	–

💡 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	1.91	1.95	–	32	–	–	–	–

Visualization

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