CWNU 1279

0.17 UTI

0.26

C_N

0.09

C_dens

0.38

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 26

Core radius and density 3.1 [pc], 0.4 [pc^-2]

C3 classification CB

C_N 0.26 Poorly populated
C_dens 0.09 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 1279 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by high extinction. It is catalogued as a metal-rich, 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 High extinction Metal-rich Young

Palma et al. (2025)
Part of multiple system G169, along with OC_0681 and HSC_2894.

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.41 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.41 (50th percentile).

Data

🔍 Search references for CWNU 1279 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–	261.384	-36.44	0.593	1.406	-0.497	15.715
Hunt & Reffert	2024	261.426	-36.463	0.577	1.349	-0.572	7.106
Cavallo et al.	2024	261.35	-36.451	0.577	–	–	–
Hunt & Reffert	2023	261.426	-36.463	0.577	1.349	-0.572	7.106
He et al.	2023	261.385	-36.393	0.591	1.408	-0.507	–

💡 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–	1.66	3.21	2.49	20	0.520	286	–	–
Hunt & Reffert	2024	1.64	3.21	2.49	20	–	286⁽¹⁾	–	–
Cavallo et al.	2024	1.68	3.15	–	45	0.520	–	–	–
Hunt & Reffert	2023	1.64	3.21	2.49	20	–	–	–	–
He et al.	2023	1.74	3.80	–	11	–	–	–	–

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

Visualization

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