CWNU 2118

0.10 UTI

0.0

C_N

0.06

C_dens

0.62

C_C3

0.0

C_lit

0.76

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 0.3 [N/pc²]

C3 classification AC

C_N 0.0 Sparse
C_dens 0.06 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.76 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 2118 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close 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 2118 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–	108.281	-24.762	0.774	-2.836	1.825	34.225
He et al.	2023	108.332	-24.71	0.779	-2.827	1.794	–

💡 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–	1.32	0.75	–	891	–	–	–	–
He et al.	2023	1.32	0.75	–	891	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Collinder 131	24.0	108.5	-25.73	0.77	-2.87	1.86	33.47	0.98

💡 Note: The % column shows the percentage of members that CWNU 2118 shares with each listed object.

Visualization

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