CWNU 346

0.23 UTI

0.26

C_N

0.68

C_dens

0.62

C_C3

0.03

C_lit

0.69

C_dup

N_m (P>50%) 26

Core radius and density 0.8 [pc], 3.4 [pc^-2]

C3 classification CA

C_N 0.26 Poorly populated
C_dens 0.68 Moderately dense
C_C3 0.62 Intermediate quality
C_lit 0.03 Rarely studied
C_dup 0.69 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 346 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.

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

Relatively close High extinction Near-solar metallicity Very young

Palma et al. (2025)
Classified as optical pair P369, along with HSC_1086.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.70 (50th percentile), true positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.70 (50th percentile), true positive? (human-assigned).

Data

🔍 Search references for CWNU 346 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–	34.522	61.154	0.477	-0.82	-0.24	-59.52
Hunt & Reffert	2024	34.546	61.156	0.487	-0.832	-0.245	-59.511
Hunt & Reffert	2023	34.546	61.156	0.487	-0.832	-0.245	-59.511
He et al.	2022	34.502	61.153	0.46	-0.84	-0.25	-61.2

💡 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–	2.11	4.25	1.01	3	0.420	406	–	–
Hunt & Reffert	2024	2.11	4.25	1.01	3	–	406⁽¹⁾	–	–
Hunt & Reffert	2023	2.11	4.25	1.01	3	–	–	–	–
He et al.	2022	1.70	3.99	–	79	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
FSR 0578	30.8	34.99	61.03	0.44	-1.11	-0.29	-65.66	0.22

💡 Note: The % column shows the percentage of members that CWNU 346 shares with each listed object.

Visualization

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