CWNU 2666

0.28 UTI

0.0

C_N

0.25

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 24

Core radius and density 0.9 [pc], 1.2 [pc^-2]

C3 classification AA

C_N 0.0 Sparse
C_dens 0.25 Loose
C_C3 1.0 Very high 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 2666 is a sparse, loose object of very high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

Relatively close Moderate extinction Near-solar metallicity Young

Palma et al. (2025)
Part of multiple system G56, along with HSC_224 and OC_0038.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for CWNU 2666 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–	281.019	-11.895	0.555	0.618	-0.84	–
Hunt & Reffert	2024	281.022	-11.906	0.563	0.607	-0.803	–
Cavallo et al.	2024	280.996	-11.878	0.563	–	–	–
Hunt & Reffert	2023	281.022	-11.906	0.563	0.607	-0.803	–
He et al.	2023	280.999	-11.87	0.555	0.61	-0.841	–

💡 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–	1.7	2.72	1.61	76	0.210	335	–	–
Hunt & Reffert	2024	1.70	2.58	1.61	98	–	335⁽¹⁾	–	–
Cavallo et al.	2024	1.72	2.86	–	54	0.210	–	–	–
Hunt & Reffert	2023	1.70	2.58	1.61	98	–	–	–	–
He et al.	2023	1.70	3.00	–	50	–	–	–	–

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

Visualization

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