UBC 1375

0.35 UTI

0.53

C_N

0.28

C_dens

0.75

C_C3

0.3

C_lit

0.82

C_dup

N₅₀ (P>50% members) 56

Stellar density (N₅₀/rad) 1.4 [N/pc²]

C3 classification AB

C_N 0.53 Moderately populated
C_dens 0.28 Loose
C_C3 0.75 High quality
C_lit 0.3 Poorly studied
C_dup 0.82 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 1375 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.

Distant Low extinction Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 210 along with HSC_1845.

Palma et al. (2025)
Classified as optical pair P30, along with HSC_1845.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 1375 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–	111.172	-18.861	0.279	-1.276	2.154	59.667
Hunt & Reffert	2024	111.17	-18.844	0.271	-1.26	2.16	63.122
Cavallo et al.	2024	111.185	-18.874	0.273	–	–	–
Hunt & Reffert	2023	111.17	-18.844	0.271	-1.26	2.16	63.122
Castro-Ginard et al.	2022	111.17	-18.86	0.29	-1.26	2.15	–

💡 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–	3.725	0.845	1.93	206	0.280	460	–	–
Liu et al.	2025	5.50	0.40	–	158	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	460⁽¹⁾	–	–
Cavallo et al.	2024	3.33	1.05	–	263	0.280	–	–	–
Hunt & Reffert	2023	3.12	0.92	1.93	222	–	–	–	–
Castro-Ginard et al.	2022	4.12	0.77	–	189	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
LISC 1132	17.9	111.17	-18.9	0.3	-1.4	2.08	–	0.04

💡 Note: The % column shows the percentage of members that UBC 1375 shares with each listed object.

Visualization

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