CWNU 1490

0.24 UTI

0.3

C_N

0.53

C_dens

0.25

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 30

Core radius and density 1.0 [pc], 2.6 [pc^-2]

C3 classification DB

C_N 0.3 Poorly populated
C_dens 0.53 Moderately dense
C_C3 0.25 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 1490 is a poorly populated, moderately dense object of low 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, 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 Moderate extinction Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.27 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.27 (50th percentile).

Data

🔍 Search references for CWNU 1490 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–	313.405	47.355	0.339	-3.994	-5.423	-30.505
Hunt & Reffert	2024	313.393	47.344	0.337	-4.003	-5.431	-41.429
Cavallo et al.	2024	313.393	47.361	0.338	–	–	–
Hunt & Reffert	2023	313.393	47.344	0.337	-4.003	-5.431	-41.429
He et al.	2023	313.419	47.363	0.342	-3.996	-5.404	–

💡 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–	2.81	1.875	1.98	53	0.990	310	–	–
Hunt & Reffert	2024	2.76	2.09	1.98	53	–	310⁽¹⁾	–	–
Cavallo et al.	2024	2.86	1.66	–	151	0.990	–	–	–
Hunt & Reffert	2023	2.76	2.09	1.98	53	–	–	–	–
He et al.	2023	3.02	1.30	–	4	–	–	–	–

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

Visualization

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