UBC 1371

0.57 UTI

0.75

C_N

1.0

C_dens

0.5

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 109

Stellar density (N₅₀/rad) 10.5 [N/pc²]

C3 classification BB

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 1371 is a rich, very dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Palma et al. (2025)
Classified as optical pair P593, along with UBC_1370.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 1371 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–	111.128	-17.191	0.343	-1.354	-0.495	32.634
Hu & Soubiran	2025	111.135	-17.2	–	–	–	–
Hunt & Reffert	2024	111.133	-17.193	0.34	-1.379	-0.407	52.206
Cavallo et al.	2024	111.135	-17.2	0.344	–	–	–
Hunt & Reffert	2023	111.133	-17.193	0.34	-1.379	-0.407	52.206
Castro-Ginard et al.	2022	111.13	-17.19	0.34	-1.33	-0.47	41.34

💡 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–	2.63	1.84	2.57	719	-0.200	712	–	–
Hu & Soubiran	2025	–	–	–	–	-0.250⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	712⁽¹⁾	–	–
Cavallo et al.	2024	2.41	1.99	–	832	-0.150	–	–	–
Hunt & Reffert	2023	2.63	1.84	2.57	499	–	–	–	–
Castro-Ginard et al.	2022	3.27	1.47	–	719	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 341	89.9	111.13	-17.19	0.34	-1.35	-0.5	40.33	0.01

💡 Note: The % column shows the percentage of members that UBC 1371 shares with each listed object.

Visualization

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