CWNU 1720

0.34 UTI

0.28

C_N

0.44

C_dens

0.25

C_C3

0.38

C_lit

1.0

C_dup

C3 classification DB

Number of members (P>50%) 28

Radius (P>50% members) 3.3 [arcmin]

C_N 0.28 Poorly populated
C_dens 0.44 Loose
C_C3 0.25 Low quality
C_lit 0.38 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 1720 is a poorly populated, loose 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 near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 1720 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	–	80.481	37.751	0.269	0.104	-2.083	-18.885
Hu & Soubiran	2025	80.481	37.738	–	–	–	–
Zhang et al.	2024	80.484	37.742	–	–	–	–
Hunt & Reffert	2024	80.484	37.742	0.282	0.124	-2.074	-17.846
Cavallo et al.	2024	80.481	37.738	0.279	–	–	–
Hunt & Reffert	2023	80.484	37.742	0.282	0.124	-2.074	-17.846
He et al.	2023	80.485	37.739	0.287	0.091	-2.087	-18.88

💡 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]	Bfr	BSS
Hu & Soubiran	2025	–	–	–	–	-0.320*	–	–	–
Zhang et al.	2024	–	–	–	–	-0.135*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	495*	–	–
Cavallo et al.	2024	3.61	1.88	–	1288	0.060	–	–	–
Hunt & Reffert	2023	3.42	1.98	0.94	940	–	–	–	–
He et al.	2023	3.72	2.45	–	794	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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