UBC 32

(UPK 19)

0.81 UTI

0.79

C_N

1.0

C_dens

0.75

C_C3

0.75

C_lit

1.0

C_dup

N₅₀ (P>50% members) 214

Stellar density (N₅₀/rad) 15.3 [N/pc²]

C3 classification AB

C_N 0.79 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.75 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 32 is a rich, very dense object of high C3 quality. Its parallax locates it at a very close distance, near 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 well-studied in the literature.

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

Very close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 32 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–	279.209	-14.126	3.545	-1.797	-9.309	-22.107
Li et al.	2025	279.312	-14.096	3.563	-1.768	-9.279	–
Wei et al.	2025	278.995	-13.946	3.538	-1.855	-9.242	–
Alfonso et al.	2024	279.299	-14.146	3.512	-1.767	-9.364	–
Hunt & Reffert	2024	279.322	-14.003	3.498	-1.808	-9.229	-19.725
Cavallo et al.	2024	279.454	-14.08	3.507	–	–	–
Hunt & Reffert	2023	279.322	-14.003	3.498	-1.808	-9.229	-19.725
He et al.	2022	279.249	-14.268	3.552	-1.745	-9.42	–
Tarricq et al.	2022	279.265	-14.078	3.567	-1.762	-9.309	–
Cantat-Gaudin et al.	2020	279.312	-14.096	3.563	-1.768	-9.279	–
Cantat-Gaudin & Anders	2020	279.312	-14.096	3.563	-1.768	-9.279	–
Sim et al.	2019	279.354	-14.204	–	-1.81	-9.33	–
Bica et al.	2019	279.424	-14.049	–	–	–	–
Castro-Ginard et al.	2018	279.436	-14.047	3.562	-1.753	-9.265	-21.58

💡 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–	0.28	1.03	1.58	138	0.029	291	0.51	–
Li et al.	2025	0.26	0.80	–	373	0.048	–	–	–
Wei et al.	2025	0.46	1.55	–	68	-0.250	199	0.51	–
Alfonso et al.	2024	0.28	0.55	–	212	0.011	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	383⁽¹⁾	–	–
Cavallo et al.	2024	0.29	1.47	–	76	0.100	–	–	–
Hunt & Reffert	2023	0.28	1.03	1.58	77	–	–	–	–
He et al.	2022	–	1.25	–	79	–	–	–	–
Tarricq et al.	2022	0.28	–	–	141	–	–	–	–
Cantat-Gaudin et al.	2020	0.28	0.55	–	138	–	–	–	–
Cantat-Gaudin & Anders	2020	0.28	–	–	–	–	–	–	–
Sim et al.	2019	0.29	–	–	316	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OCSN 288	98.6	279.21	-14.15	3.54	-1.78	-9.31	-22.13	0.12

💡 Note: The % column shows the percentage of members that UBC 32 shares with each listed object.

Visualization

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