UBC 59

0.48 UTI

0.0

C_N

0.54

C_dens

0.75

C_C3

0.55

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 2.7 [N/pc²]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.54 Moderately dense
C_C3 0.75 High quality
C_lit 0.55 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 59 is a sparse, moderately dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for UBC 59 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–	82.238	48.018	0.42	0.624	-1.987	–
Hu & Soubiran	2025	82.247	48.028	–	–	–	–
Almeida et al.	2025	82.237	48.045	–	–	–	–
Zhang et al.	2024	82.233	48.01	–	–	–	–
Hunt & Reffert	2024	82.233	48.01	0.409	0.569	-1.971	-34.921
Cavallo et al.	2024	82.247	48.028	0.418	–	–	–
Hunt & Reffert	2023	82.233	48.01	0.409	0.569	-1.971	-34.921
Dias et al.	2021	82.237	48.045	0.342	0.663	-2.0	-32.302
Cantat-Gaudin et al.	2020	82.239	48.043	0.39	0.682	-1.996	–
Cantat-Gaudin & Anders	2020	82.239	48.043	0.39	0.682	-1.996	–
Castro-Ginard et al.	2019	82.241	48.04	0.382	0.687	-2.002	–

💡 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–	2.21	0.95	0.95	794	-0.168	431	–	–
Hu & Soubiran	2025	–	–	–	–	-0.140⁽⁵⁾	–	–	–
Almeida et al.	2025	2.21	1.12	–	897	–	498	–	–
Zhang et al.	2024	–	–	–	–	-0.196⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	364⁽¹⁾	–	–
Cavallo et al.	2024	2.02	0.63	–	794	0.330	–	–	–
Hunt & Reffert	2023	2.18	0.59	0.95	681	–	–	–	–
Dias et al.	2021	2.21	1.12	–	897	-0.234	–	–	–
Cantat-Gaudin et al.	2020	2.58	0.95	–	490	–	–	–	–
Cantat-Gaudin & Anders	2020	2.38	–	–	–	–	–	–	–

(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 13241	100.0	82.25	48.02	0.43	0.61	-1.98	-35.63	0.21
OC 0276	92.0	82.24	48.02	0.43	0.62	-1.99	-35.98	0.13

💡 Note: The % column shows the percentage of members that UBC 59 shares with each listed object.

Visualization

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