CWNU 88

0.27 UTI

0.29

C_N

0.14

C_dens

0.75

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 29

Core radius and density 2.5 [pc], 0.7 [pc^-2]

C3 classification AB

C_N 0.29 Poorly populated
C_dens 0.14 Very loose
C_C3 0.75 High 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

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CWNU 88 is a poorly populated, very loose object of high 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, very young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is rarely studied in the literature.

Close Low extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 54 along with Theia_953.

Palma et al. (2025)
Part of multiple system G148, along with Theia_953 and HSC_2271.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for CWNU 88 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	131.507	-59.87	1.831	-7.836	6.4	18.577
Swiggum et al.	2024	131.173	-59.96	1.829	-7.708	6.617	18.965
Cavallo et al.	2024	131.211	-59.244	1.839	–	–	–
Hunt & Reffert	2023	131.173	-59.96	1.829	-7.708	6.617	14.799
He et al.	2022	131.661	-59.696	1.83	-7.71	6.42	18.5

💡 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–	0.52	0.18	0.65	15	-0.287	107	–	–
Liu et al.	2025	0.45	0.08	–	37	–	–	–	–
Swiggum et al.	2024	0.53	–	–	15	–	107	–	–
Cavallo et al.	2024	0.56	0.93	–	8	-0.170	–	–	–
Hunt & Reffert	2023	0.52	0.28	0.65	15	–	–	–	–
He et al.	2022	0.48	0.06	–	8	-0.404	–	–	–

Visualization

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