CWNU 2565

0.24 UTI

0.46

C_N

0.28

C_dens

0.38

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 46

Core radius and density 1.7 [pc], 1.4 [pc^-2]

C3 classification CB

C_N 0.46 Poorly populated
C_dens 0.28 Loose
C_C3 0.38 Low quality
C_lit 0.03 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 2565 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a young 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 High extinction Young

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.05 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.05 (50th percentile).

Data

🔍 Search references for CWNU 2565 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–	246.5	-49.899	0.328	-1.839	-2.098	1.323
Hunt & Reffert	2024	246.528	-49.915	0.323	-1.808	-2.094	45.863
Hunt & Reffert	2023	246.528	-49.915	0.323	-1.808	-2.094	45.863
He et al.	2023	246.486	-49.905	0.341	-1.848	-2.101	–

💡 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–	2.82	3.72	2.51	43	–	449	–	–
Hunt & Reffert	2024	2.82	3.72	2.51	43	–	449⁽¹⁾	–	–
Hunt & Reffert	2023	2.82	3.72	2.51	43	–	–	–	–
He et al.	2023	2.57	3.80	–	6	–	–	–	–

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

Visualization

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