CWNU 1722

0.20 UTI

0.37

C_N

0.06

C_dens

0.38

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 37

Core radius and density 1.0 [pc], 0.3 [pc^-2]

C3 classification CB

C_N 0.37 Poorly populated
C_dens 0.06 Very loose
C_C3 0.38 Low quality
C_lit 0.1 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

CWNU 1722 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It was recently reported in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.89 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.89 (50th percentile).

Data

🔍 Search references for CWNU 1722 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	8.743	60.595	0.287	-1.614	-0.903	–
Yang et al.	2025	8.753	60.566	–	–	–	–
Hunt & Reffert	2024	8.753	60.566	0.272	-1.623	-0.887	-44.389
Cavallo et al.	2024	8.727	60.59	0.275	–	–	–
Hunt & Reffert	2023	8.753	60.566	0.272	-1.623	-0.887	-44.389
He et al.	2023	8.73	60.605	0.287	-1.596	-0.906	–

💡 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–	3.435	1.82	2.23	224	0.170	320	–	–
Yang et al.	2025	–	–	–	224	-0.170⁽³⁾	–	–	–
Hunt & Reffert	2024	3.32	1.82	2.23	224	–	320⁽¹⁾	–	–
Cavallo et al.	2024	3.55	1.64	–	234	0.510	–	–	–
Hunt & Reffert	2023	3.32	1.82	2.23	224	–	–	–	–
He et al.	2023	3.80	2.40	–	28	–	–	–	–

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

Visualization

ℹ️

1 2