CWNU 1491

0.43 UTI

0.27

C_N

1.0

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 27

Core radius and density 0.5 [pc], 7.7 [pc^-2]

C3 classification AB

C_N 0.27 Poorly populated
C_dens 1.0 Very dense
C_C3 0.75 High 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 1491 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate 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 was recently reported in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for CWNU 1491 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–	239.41	-55.404	0.492	-2.314	-2.351	-12.983
Hunt & Reffert	2024	239.414	-55.404	0.486	-2.299	-2.357	-12.987
Cavallo et al.	2024	239.407	-55.397	0.487	–	–	–
Hunt & Reffert	2023	239.414	-55.404	0.486	-2.299	-2.357	-12.987
He et al.	2023	239.414	-55.406	0.492	-2.3	-2.355	–

💡 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–	1.94	2.465	1.4	168	0.360	352	–	–
Hunt & Reffert	2024	1.94	2.43	1.40	257	–	352⁽¹⁾	–	–
Cavallo et al.	2024	1.91	2.50	–	81	0.360	–	–	–
Hunt & Reffert	2023	1.94	2.42	1.40	256	–	–	–	–
He et al.	2023	1.95	2.70	–	25	–	–	–	–

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

Visualization

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