CWNU 1826

0.14 UTI

0.0

C_N

0.21

C_dens

0.38

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 23

Core radius and density 1.6 [pc], 1.0 [pc^-2]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.21 Very loose
C_C3 0.38 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 1826 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a young 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 Young

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.98 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.98 (50th percentile), true positive (human-assigned).

Data

🔍 Search references for CWNU 1826 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–	230.161	-54.475	0.604	-2.686	-3.83	–
Hunt & Reffert	2024	230.164	-54.482	0.615	-2.697	-3.814	–
Hunt & Reffert	2023	230.164	-54.482	0.615	-2.697	-3.814	–
He et al.	2023	230.149	-54.473	0.619	-2.686	-3.841	–

💡 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–	1.56	1.25	0.525	76	–	123	–	–
Hunt & Reffert	2024	1.56	1.25	0.52	76	–	123⁽¹⁾	–	–
Hunt & Reffert	2023	1.56	1.25	0.53	76	–	–	–	–
He et al.	2023	1.66	1.65	–	126	–	–	–	–

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

Visualization

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