CWNU 2389

0.60 UTI

0.52

C_N

1.0

C_dens

1.0

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 53

Stellar density (N₅₀/rad) 17.1 [N/pc²]

C3 classification AA

C_N 0.52 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 2389 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by very high 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 Very high extinction Near-solar metallicity Intermediate age

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P76, along with UBC_549.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 2389 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–	253.473	-46.735	0.346	-1.177	-1.923	-44.383
Hunt & Reffert	2024	253.471	-46.736	0.367	-1.166	-1.959	-41.266
Cavallo et al.	2024	253.473	-46.735	0.36	–	–	–
Hunt & Reffert	2023	253.471	-46.736	0.367	-1.166	-1.959	-41.266
He et al.	2023	253.471	-46.744	0.365	-1.176	-1.924	-44.38

💡 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–	2.34	5.22	2.62	282	0.060	871	–	–
Hunt & Reffert	2024	–	–	–	–	–	871⁽¹⁾	–	–
Cavallo et al.	2024	2.24	4.93	–	380	0.060	–	–	–
Hunt & Reffert	2023	2.54	5.22	2.62	97	–	–	–	–
He et al.	2023	2.34	5.30	–	282	–	–	–	–

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

Visualization

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