CWNU 2300

0.27 UTI

0.0

C_N

0.43

C_dens

0.75

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 24

Core radius and density 1.1 [pc], 2.1 [pc^-2]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.43 Loose
C_C3 0.75 High 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 2300 is a sparse, loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, old 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 Old

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.78 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.78 (50th percentile).

Data

🔍 Search references for CWNU 2300 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–	154.603	-59.823	0.23	-5.029	2.843	–
Hu & Soubiran	2025	154.606	-59.82	–	–	–	–
Hunt & Reffert	2024	154.616	-59.823	0.218	-5.017	2.831	–
Cavallo et al.	2024	154.606	-59.82	0.22	–	–	–
Hunt & Reffert	2023	154.616	-59.823	0.218	-5.017	2.831	–
He et al.	2023	154.6	-59.816	0.238	-5.047	2.863	–

💡 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–	3.71	2.08	1.12	1090	0.030	700	–	–
Hu & Soubiran	2025	–	–	–	–	-0.300⁽⁵⁾	–	–	–
Hunt & Reffert	2024	3.95	2.11	1.12	861	–	700⁽¹⁾	–	–
Cavallo et al.	2024	3.34	2.05	–	1318	0.360	–	–	–
Hunt & Reffert	2023	3.95	2.11	1.12	861	–	–	–	–
He et al.	2023	3.47	1.90	–	1995	–	–	–	–

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

Visualization

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