CWNU 246

0.22 UTI

0.39

C_N

0.1

C_dens

0.5

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 39

Core radius and density 1.9 [pc], 0.5 [pc^-2]

C3 classification BB

C_N 0.39 Poorly populated
C_dens 0.1 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 246 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age 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 Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for CWNU 246 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–	117.102	-23.862	0.552	-2.516	1.77	42.965
Hunt & Reffert	2024	117.144	-23.734	0.546	-2.521	1.797	54.915
Cavallo et al.	2024	117.21	-24.17	0.547	–	–	–
Hunt & Reffert	2023	117.144	-23.734	0.546	-2.521	1.797	54.915
He et al.	2022	117.064	-23.865	0.55	-2.52	1.76	–

💡 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–	1.75	0.295	0.66	580	0.226	100	–	–
Hunt & Reffert	2024	1.67	0.24	0.66	734	–	100⁽¹⁾	–	–
Cavallo et al.	2024	1.83	0.35	–	427	0.290	–	–	–
Hunt & Reffert	2023	1.67	0.23	0.66	735	–	–	–	–
He et al.	2022	1.86	0.70	–	158	0.161	–	–	–

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

Visualization

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