CWNU 1611

0.24 UTI

0.3

C_N

0.16

C_dens

0.25

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 30

Stellar density (N₅₀/rad) 0.8 [N/pc²]

C3 classification CC

C_N 0.3 Poorly populated
C_dens 0.16 Very loose
C_C3 0.25 Low quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 1611 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 parameter (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.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for CWNU 1611 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–	106.253	-14.115	0.368	-1.105	0.663	63.183
Hu & Soubiran	2025	106.255	-14.123	–	–	–	–
Cavallo et al.	2024	106.255	-14.123	0.379	–	–	–
Hunt & Reffert	2023	106.319	-14.069	0.376	-1.088	0.66	63.152
He et al.	2023	106.25	-14.111	0.388	-1.107	0.671	63.18

💡 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–	2.46	1.05	0.6	528	-0.025	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.120⁽⁵⁾	–	–	–
Cavallo et al.	2024	2.12	1.05	–	813	0.070	–	–	–
Hunt & Reffert	2023	2.46	1.05	0.60	528	–	–	–	–
He et al.	2023	2.69	1.75	–	224	–	–	–	–

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

Visualization

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