CWNU 1907

0.12 UTI

0.0

C_N

0.11

C_dens

0.5

C_C3

0.0

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 18

Radius (P>50% members) 7.5 [arcmin]

C_N 0.0 Sparse
C_dens 0.11 Very loose
C_C3 0.5 Intermediate 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 1907 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age 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 Intermediate age

Data

🔍 Search references for CWNU 1907 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	109.386	-11.153	0.377	-1.405	0.381	–
Hunt & Reffert	2024	109.39	-11.137	0.399	-1.419	0.345	–
Hunt & Reffert	2023	109.39	-11.137	0.399	-1.419	0.345	–
He et al.	2023	109.384	-11.149	0.38	-1.417	0.367	–

💡 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
Hunt & Reffert	2024	–	–	–	–	–	104*	–	–
Hunt & Reffert	2023	2.30	1.33	0.60	232	–	–	–	–
He et al.	2023	2.40	1.65	–	355	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

ℹ️

1 2