CWNU 440

0.31 UTI

0.55

C_N

0.11

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 60

Core radius and density 2.0 [pc], 0.6 [pc^-2]

C3 classification AB

C_N 0.55 Moderately populated
C_dens 0.11 Very loose
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 440 is a moderately populated, very loose object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.95 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.95 (50th percentile).

Data

🔍 Search references for CWNU 440 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–	295.548	22.363	0.859	-0.893	-5.08	6.209
Hunt & Reffert	2024	295.592	22.311	0.857	-0.984	-5.094	22.697
Cavallo et al.	2024	295.54	22.343	0.859	–	–	–
Hunt & Reffert	2023	295.592	22.311	0.857	-0.984	-5.094	22.697
He et al.	2022	295.574	22.37	0.87	-0.8	-5.07	4.6

💡 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–	1.145	1.595	2.15	72	0.170	141	–	–
Hunt & Reffert	2024	1.12	1.45	2.15	65	–	141⁽¹⁾	–	–
Cavallo et al.	2024	1.21	1.74	–	78	0.220	–	–	–
Hunt & Reffert	2023	1.12	1.45	2.15	65	–	–	–	–
He et al.	2022	1.17	1.96	–	100	0.119	–	–	–

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

Visualization

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