CWNU 1500

0.27 UTI

0.0

C_N

0.47

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 23

Core radius and density 1.5 [pc], 2.4 [pc^-2]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.47 Loose
C_C3 0.75 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

ℹ️

CWNU 1500 is a sparse, loose object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by high extinction. It is catalogued as a metal-rich, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

Relatively close High extinction Metal-rich Very young

Palma et al. (2025)
Classified as optical pair P313, along with CWNU_2088.

Cavallo et al. (2024)
Bronze sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.56 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.56 (50th percentile).

Data

🔍 Search references for CWNU 1500 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	194.341	-61.392	0.554	-6.56	-2.152	-7.626
Hunt & Reffert	2024	194.325	-61.394	0.55	-6.573	-2.14	-9.024
Cavallo et al.	2024	194.269	-61.394	0.55	–	–	–
Hunt & Reffert	2023	194.325	-61.394	0.55	-6.573	-2.14	-9.024
He et al.	2023	194.338	-61.394	0.559	-6.56	-2.163	–

💡 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–	1.73	4.14	1.48	7	0.620	328	–	–
Hunt & Reffert	2024	1.73	4.14	1.48	7	–	328⁽¹⁾	–	–
Cavallo et al.	2024	1.74	3.28	–	54	0.620	–	–	–
Hunt & Reffert	2023	1.73	4.14	1.48	7	–	–	–	–
He et al.	2023	1.70	4.40	–	6	–	–	–	–

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

Visualization

ℹ️

1 2