UBC 432

0.62 UTI

0.53

C_N

0.82

C_dens

0.75

C_C3

0.5

C_lit

1.0

C_dup

N₅₀ (P>50% members) 56

Stellar density (N₅₀/rad) 4.1 [N/pc²]

C3 classification AB

C_N 0.53 Moderately populated
C_dens 0.82 Dense
C_C3 0.75 High quality
C_lit 0.5 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 432 is a moderately populated, dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 278 along with NGC_1857.

Palma et al. (2025)
Classified as optical pair P543, along with NGC_1857.

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for UBC 432 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–	79.044	39.528	0.339	0.275	-1.915	–
Almeida et al.	2025	79.035	39.529	–	–	–	–
Zhang et al.	2024	79.056	39.537	–	–	–	–
Hunt & Reffert	2024	79.056	39.537	0.324	0.271	-1.933	–
Cavallo et al.	2024	79.044	39.525	0.327	–	–	–
Hunt & Reffert	2023	79.056	39.537	0.324	0.271	-1.933	–
Dias et al.	2021	79.035	39.529	0.309	0.36	-1.884	–
Cantat-Gaudin et al.	2020	79.031	39.518	0.327	0.323	-1.876	–
Castro-Ginard et al.	2020	79.04	39.52	0.331	0.321	-1.878	–

💡 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–	2.66	1.62	0.55	162	-0.074	513	–	–
Liu et al.	2025	5.45	0.57	–	214	–	–	–	–
Almeida et al.	2025	2.63	1.90	–	14	–	557	–	–
Zhang et al.	2024	–	–	–	–	-0.074⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	469⁽¹⁾	–	–
Cavallo et al.	2024	2.61	1.62	–	324	0.220	–	–	–
Hunt & Reffert	2023	2.69	1.62	0.55	110	–	–	–	–
Dias et al.	2021	2.63	1.90	–	14	-0.091	–	–	–
Cantat-Gaudin et al.	2020	2.91	1.27	–	331	–	–	–	–

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

Visualization

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