UBC 596

0.21 UTI

0.0

C_N

0.22

C_dens

0.38

C_C3

0.23

C_lit

1.0

C_dup

N_m (P>50%) 20

Core radius and density 1.4 [pc], 1.1 [pc^-2]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.22 Very loose
C_C3 0.38 Low quality
C_lit 0.23 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 596 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively 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 rarely studied in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

⚠️ 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 Low extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

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

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

Data

🔍 Search references for UBC 596 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–	3.385	53.833	0.513	-2.199	-1.044	–
Almeida et al.	2025	3.37	53.822	–	–	–	–
Zhang et al.	2024	3.414	53.827	–	–	–	–
Hunt & Reffert	2024	3.414	53.827	0.516	-2.135	-1.134	–
Cavallo et al.	2024	3.415	53.832	0.515	–	–	–
Hunt & Reffert	2023	3.414	53.827	0.516	-2.135	-1.134	–
Dias et al.	2021	3.37	53.822	0.48	-2.229	-1.031	–
Cantat-Gaudin et al.	2020	3.36	53.832	0.527	-2.193	-0.973	–
Castro-Ginard et al.	2020	3.391	53.832	0.532	-2.221	-1.008	–

💡 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–	1.84	0.85	0.42	104	-0.216	70	–	–
Almeida et al.	2025	1.74	0.88	–	242	–	60	–	–
Zhang et al.	2024	–	–	–	–	-0.216⁽¹⁾	–	–	–
Hunt & Reffert	2024	1.93	0.61	0.42	104	–	81⁽¹⁾	–	–
Cavallo et al.	2024	1.80	0.85	–	76	-0.240	–	–	–
Hunt & Reffert	2023	1.93	0.61	0.42	104	–	–	–	–
Dias et al.	2021	1.74	0.88	–	242	-0.079	–	–	–
Cantat-Gaudin et al.	2020	1.84	0.32	–	141	–	–	–	–
Kounkel et al.	2020	1.91	1.31	–	50	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 13288	76.0	3.39	53.82	0.51	-2.19	-1.1	–	0.03

💡 Note: The % column shows the percentage of members that UBC 596 shares with each listed object.

Visualization

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