CWNU 61

0.37 UTI

0.33

C_N

0.52

C_dens

0.5

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 33

Stellar density (N₅₀/rad) 2.6 [N/pc²]

C3 classification BB

C_N 0.33 Poorly populated
C_dens 0.52 Moderately dense
C_C3 0.5 Intermediate quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

ℹ️

CWNU 61 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

Close Low extinction Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 8 along with ASCC_51.

Palma et al. (2025)
Classified as optical pair P378, along with Theia_704.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for CWNU 61 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	153.322	-71.129	1.847	-7.929	5.569	9.094
Cavallo et al.	2024	153.628	-71.231	1.836	–	–	–
Hunt & Reffert	2023	153.52	-71.041	1.841	-7.974	5.461	11.086
He et al.	2022	152.589	-71.145	1.85	-7.86	5.64	9.8

💡 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–	0.55	0.335	0.73	229	-0.153	–	–	–
Liu et al.	2025	0.62	0.10	–	234	–	–	–	–
Cavallo et al.	2024	0.55	0.49	–	224	-0.070	–	–	–
Hunt & Reffert	2023	0.52	0.18	0.73	318	–	–	–	–
He et al.	2022	0.55	0.54	–	200	-0.236	–	–	–

Visualization

ℹ️

1 2