CWNU 65

0.15 UTI

0.3

C_N

0.05

C_dens

0.25

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 30

Core radius and density 2.3 [pc], 0.2 [pc^-2]

C3 classification CC

C_N 0.3 Poorly populated
C_dens 0.05 Very loose
C_C3 0.25 Low 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 65 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied 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 Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.78 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.78 (50th percentile).

Data

🔍 Search references for CWNU 65 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–	35.572	62.546	0.467	-0.556	-0.394	–
Hunt & Reffert	2024	35.336	62.569	0.459	-0.524	-0.389	–
Cavallo et al.	2024	35.648	62.485	0.463	–	–	–
Hunt & Reffert	2023	35.336	62.569	0.459	-0.524	-0.389	–
He et al.	2022	35.637	62.547	0.47	-0.56	-0.38	–

💡 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–	2.055	2.22	1.93	63	0.335	164	–	–
Hunt & Reffert	2024	2.01	2.11	1.93	89	–	164⁽¹⁾	–	–
Cavallo et al.	2024	2.10	2.33	–	37	0.250	–	–	–
Hunt & Reffert	2023	2.01	2.11	1.93	89	–	–	–	–
He et al.	2022	3.47	3.11	–	8	0.420	–	–	–

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

Visualization

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