CWNU 318

0.26 UTI

0.3

C_N

0.3

C_dens

0.5

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 30

Core radius and density 1.8 [pc], 1.5 [pc^-2]

C3 classification BB

C_N 0.3 Poorly populated
C_dens 0.3 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

ℹ️

CWNU 318 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for CWNU 318 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	219.142	-61.909	0.516	-2.759	-1.132	-6.037
Hu & Soubiran	2025	219.155	-61.918	–	–	–	–
Hunt & Reffert	2024	219.088	-61.912	0.51	-2.779	-1.136	4.339
Cavallo et al.	2024	219.155	-61.918	0.51	–	–	–
Hunt & Reffert	2023	219.088	-61.912	0.51	-2.779	-1.136	4.339
He et al.	2022	219.141	-61.902	0.52	-2.76	-1.15	-7.2

💡 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–	1.83	1.5	0.47	458	-0.020	197	–	–
Hu & Soubiran	2025	–	–	–	–	-0.180⁽⁵⁾	–	–	–
Hunt & Reffert	2024	1.83	1.50	0.47	342	–	197⁽¹⁾	–	–
Cavallo et al.	2024	1.61	1.44	–	575	-0.020	–	–	–
Hunt & Reffert	2023	1.83	1.50	0.47	342	–	–	–	–
He et al.	2022	2.19	1.58	–	794	0.073	–	–	–

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

Visualization

ℹ️

1 2