CWNU 1441

0.23 UTI

0.0

C_N

0.29

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N₅₀ (P>50% members) 21

Stellar density (N₅₀/rad) 1.5 [N/pc²]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.29 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 1441 is a sparse, loose object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, 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 Low extinction Near-solar metallicity Young

Palma et al. (2025)
Classified as optical pair P99, along with Theia_2007.

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 1441 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–	301.661	34.095	0.609	-1.973	-5.333	–
Hunt & Reffert	2024	301.694	34.111	0.615	-1.986	-5.351	–
Cavallo et al.	2024	301.659	34.074	0.617	–	–	–
Hunt & Reffert	2023	301.694	34.111	0.615	-1.986	-5.351	–
He et al.	2023	301.655	34.069	0.611	-1.993	-5.333	–

💡 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–	1.54	0.72	0.55	48	0.060	89	–	–
Hunt & Reffert	2024	–	–	–	–	–	89⁽¹⁾	–	–
Cavallo et al.	2024	1.46	0.72	–	195	0.060	–	–	–
Hunt & Reffert	2023	1.54	0.56	0.55	48	–	–	–	–
He et al.	2023	1.58	1.00	–	40	–	–	–	–

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

Visualization

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