CWNU 1783

0.03 UTI

0.0

C_N

0.04

C_dens

0.12

C_C3

0.0

C_lit

0.76

C_dup

C3 classification DC

Number of members (P>50%) 20

Radius (P>50% members) 11.1 [arcmin]

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 0.76 Very likely unique

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

Overview

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CWNU 1783 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.

Note: This is very likely a unique object, which shares a 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=0.76) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Low extinction Intermediate age

Data

🔍 Search references for CWNU 1783 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	–	48.46	47.183	0.34	0.483	-0.977	-16.241
He et al.	2023	48.45	47.188	0.33	0.483	-0.973	-16.24

💡 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	2.57	0.90	–	794	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Melotte 18	24.0	48.69	47.23	0.3	0.47	-1.65	-29.77	1.0

💡 Note: The % column shows the percentage of members that CWNU 1783 shares with each listed object.

Visualization

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