CWNU 304

0.35 UTI

0.52

C_N

0.1

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 53

Core radius and density 3.3 [pc], 0.5 [pc^-2]

C3 classification AA

C_N 0.52 Moderately populated
C_dens 0.1 Very loose
C_C3 1.0 Very 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 304 is a moderately populated, very loose object of very high C3 quality. Its parallax locates it at a relatively close distance, below 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 is rarely studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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 304 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–	251.085	-53.148	0.51	-2.067	-3.757	-23.94
Hunt & Reffert	2024	251.129	-52.988	0.505	-2.063	-3.751	-22.219
Cavallo et al.	2024	251.112	-53.132	0.505	–	–	–
Hunt & Reffert	2023	251.129	-52.988	0.505	-2.063	-3.751	-22.219
He et al.	2022	251.051	-53.202	0.51	-2.08	-3.75	-27.6

💡 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–	1.85	1.185	0.67	372	-0.120	235	–	–
Hunt & Reffert	2024	1.85	1.06	0.67	372	–	235⁽¹⁾	–	–
Cavallo et al.	2024	1.91	1.31	–	372	0.340	–	–	–
Hunt & Reffert	2023	1.85	1.06	0.67	372	–	–	–	–
He et al.	2022	1.48	1.58	–	501	-0.580	–	–	–

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

Visualization

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