CWNU 2892

0.15 UTI

0.0

C_N

0.14

C_dens

0.5

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 24

Core radius and density 1.8 [pc], 0.7 [pc^-2]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.14 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 2892 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, 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 Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.21 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.21 (50th percentile).

Data

🔍 Search references for CWNU 2892 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–	319.912	55.545	0.446	-1.716	-2.451	-6.042
Hunt & Reffert	2024	319.903	55.582	0.437	-1.691	-2.413	-6.144
Cavallo et al.	2024	319.896	55.568	0.439	–	–	–
Hunt & Reffert	2023	319.903	55.582	0.437	-1.691	-2.413	-6.144
He et al.	2023	319.912	55.58	0.442	-1.716	-2.457	–

💡 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–	2.155	2.9	2.19	126	0.870	246	–	–
Hunt & Reffert	2024	2.09	2.90	2.19	69	–	246⁽¹⁾	–	–
Cavallo et al.	2024	2.22	2.78	–	182	0.870	–	–	–
Hunt & Reffert	2023	2.09	2.90	2.19	69	–	–	–	–
He et al.	2023	2.29	3.25	–	708	–	–	–	–

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

Visualization

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