CWNU 2669

0.21 UTI

0.32

C_N

0.09

C_dens

0.5

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 32

Core radius and density 3.7 [pc], 0.5 [pc^-2]

C3 classification BB

C_N 0.32 Poorly populated
C_dens 0.09 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 2669 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a very metal-poor, intermediate-age cluster (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 Very metal-poor Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Data

🔍 Search references for CWNU 2669 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–	273.851	-18.685	0.406	0.873	-0.295	31.015
Hunt & Reffert	2024	273.877	-18.665	0.405	0.88	-0.308	42.648
Cavallo et al.	2024	273.848	-18.681	0.404	–	–	–
Hunt & Reffert	2023	273.877	-18.665	0.405	0.88	-0.308	42.648
He et al.	2023	273.858	-18.718	0.414	0.881	-0.278	47.26

💡 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–	2.21	1.87	1.71	189	-1.210	272	–	–
Hunt & Reffert	2024	2.21	1.41	1.71	189	–	272⁽¹⁾	–	–
Cavallo et al.	2024	1.50	2.32	–	62	-1.210	–	–	–
Hunt & Reffert	2023	2.21	1.42	1.71	189	–	–	–	–
He et al.	2023	2.63	2.40	–	200	–	–	–	–

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

Visualization

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