CWNU 3109

0.31 UTI

0.58

C_N

0.31

C_dens

0.75

C_C3

0.0

C_lit

0.96

C_dup

N_m (P>50%) 67

Core radius and density 2.1 [pc], 1.5 [pc^-2]

C3 classification AB

C_N 0.58 Moderately populated
C_dens 0.31 Loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.96 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

CWNU 3109 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It was recently reported in the literature.

Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

Very distant Moderate extinction Old

Data

🔍 Search references for CWNU 3109 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	104.018	-13.251	0.155	-0.085	1.118	72.714
Cui et al.	2025	104.02	-13.251	0.17	-0.09	1.11	–
He et al.	2023	104.02	-13.252	0.174	-0.085	1.108	72.73

💡 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–	5.25	1.55	–	2566	–	–	–	0
Cui et al.	2025	–	1.40	–	3548	–	–	–	0⁽¹⁾
He et al.	2023	5.25	1.70	–	1585	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Ruprecht 6	4.5	104.0	-13.29	0.16	-0.45	1.19	73.02	0.09

💡 Note: The % column shows the percentage of members that CWNU 3109 shares with each listed object.

Visualization

ℹ️