UBC 354

(LISC 1331)

0.00 UTI

0.25

C_N

0.13

C_dens

0.5

C_C3

0.13

C_lit

0.0

C_dup

N_m (P>50%) 25

Core radius and density 1.6 [pc], 0.7 [pc^-2]

C3 classification BB

C_N 0.25 Poorly populated
C_dens 0.13 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.13 Rarely studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 354 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a relatively 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 rarely studied in the literature.

⚠️ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry, and a small percentage with at least one entry reported in the same catalogue. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Data

🔍 Search references for UBC 354 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–	282.389	-4.364	0.6	1.223	0.091	-10.054
Li et al.	2025	282.378	-4.386	0.54	1.246	0.129	–
Almeida et al.	2025	282.354	-4.413	–	–	–	–
Dias et al.	2021	282.354	-4.413	0.583	1.153	0.122	-9.126
Cantat-Gaudin et al.	2020	282.378	-4.386	0.54	1.246	0.129	–

💡 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–	1.82	2.93	–	138	-0.126	959	–	–
Li et al.	2025	1.25	2.79	–	670	-0.139	–	–	–
Almeida et al.	2025	1.82	2.93	–	14	–	959	–	–
Deng & Li	2023	1.38	2.95	–	600	-0.126	–	–	–
Dias et al.	2021	1.82	2.93	–	14	0.333	–	–	–
Cantat-Gaudin et al.	2020	1.87	2.38	–	200	–	–	–	–
Kounkel et al.	2020	2.00	3.63	–	76	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 111	100.0	282.31	-4.47	0.61	1.1	0.07	-9.04	0.45
FoF 2117	52.0	282.31	-4.47	0.61	1.1	0.07	-9.91	0.55
FoF 2118	40.0	282.32	-4.48	0.63	1.1	0.08	-9.58	0.53
UBC 574	20.0	282.34	-4.41	0.61	1.09	0.1	-8.83	0.0

💡 Note: The % column shows the percentage of members that UBC 354 shares with each listed object.

Visualization

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