CWNU 2397

0.33 UTI

0.62

C_N

0.35

C_dens

0.5

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 74

Core radius and density 2.4 [pc], 1.7 [pc^-2]

C3 classification BB

C_N 0.62 Moderately populated
C_dens 0.35 Loose
C_C3 0.5 Intermediate quality
C_lit 0.1 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 2397 is a moderately populated, loose object of intermediate 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 (see Parameters). It was recently reported in the literature.

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.86 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.86 (50th percentile).

Data

🔍 Search references for CWNU 2397 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–	117.609	-27.595	0.244	-2.275	4.229	84.295
Hu & Soubiran	2025	117.614	-27.6	–	–	–	–
Hunt & Reffert	2024	117.617	-27.602	0.235	-2.269	4.235	91.274
Cavallo et al.	2024	117.613	-27.6	0.235	–	–	–
Hunt & Reffert	2023	117.617	-27.602	0.235	-2.269	4.235	91.274
He et al.	2023	117.59	-27.59	0.249	-2.268	4.229	91.29

💡 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–	3.515	1.94	1.36	650	0.080	387	–	–
Hu & Soubiran	2025	–	–	–	–	-0.040⁽⁵⁾	–	–	–
Hunt & Reffert	2024	3.72	1.94	1.36	649	–	387⁽¹⁾	–	–
Cavallo et al.	2024	3.28	1.94	–	1072	0.200	–	–	–
Hunt & Reffert	2023	3.72	1.94	1.36	650	–	–	–	–
He et al.	2023	3.31	2.40	–	631	–	–	–	–

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

Visualization

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