CWNU 109

0.00 UTI

0.33

C_N

0.25

C_dens

0.75

C_C3

0.0

C_lit

0.0

C_dup

N_m (P>50%) 33

Core radius and density 0.5 [pc], 1.2 [pc^-2]

C3 classification AB

C_N 0.33 Poorly populated
C_dens 0.25 Loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 109 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is rarely studied in the literature.

⚠️ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Note: This object contains blue stragglers according to at least one source.

Relatively close Moderate extinction Near-solar metallicity Old Contains BSS

Data

🔍 Search references for CWNU 109 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–	352.498	62.34	0.578	-3.136	-3.011	-21.994
Li et al.	2023	352.5	62.345	0.59	-3.15	-2.98	–
He et al.	2022	352.541	62.337	0.58	-3.14	-3.0	-36.3

💡 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–	1.82	2.535	–	2274	0.234	–	–	1
Li et al.	2023	2.19	2.15	–	3548	0.049	–	–	1⁽¹⁾
He et al.	2022	1.45	2.92	–	1000	0.420	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 1184	100.0	352.52	62.34	0.58	-3.14	-3.0	-22.77	0.43

💡 Note: The % column shows the percentage of members that CWNU 109 shares with each listed object.

Visualization

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