CWNU 2309

0.15 UTI

0.33

C_N

0.04

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

C3 classification BC

Number of members (P>50%) 33

Radius (P>50% members) 13.9 [arcmin]

C_N 0.33 Poorly populated
C_dens 0.04 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

ℹ️

CWNU 2309 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Young

Data

🔍 Search references for CWNU 2309 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	27.887	58.422	0.314	-0.728	-0.605	-51.167
He et al.	2023	27.813	58.376	0.328	-0.746	-0.589	-28.82

💡 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]	Bfr	BSS
He et al.	2023	2.57	1.35	–	32	–	–	–	–

Visualization

ℹ️