UBC 92

0.70 UTI

0.81

C_N

1.0

C_dens

1.0

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 268

Stellar density (N₅₀/rad) 25.3 [N/pc²]

C3 classification AA

C_N 0.81 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.35 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 92 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, metal-poor, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is poorly studied in the literature.

Note: This object shares a moderate percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Moderate extinction Massive Metal-poor Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 92 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–	269.872	-26.66	0.402	2.112	0.408	-10.229
Li et al.	2025	269.883	-26.655	0.37	2.116	0.406	–
Hunt & Reffert	2024	269.874	-26.655	0.411	2.088	0.395	-3.582
Cavallo et al.	2024	269.867	-26.666	0.412	–	–	–
Hunt & Reffert	2023	269.874	-26.655	0.411	2.088	0.395	-3.582
Cantat-Gaudin et al.	2020	269.883	-26.655	0.37	2.116	0.406	–
Castro-Ginard et al.	2020	269.884	-26.655	0.375	2.125	0.406	–

💡 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–	2.09	2.855	2.63	228	-0.768	3447	–	–
Li et al.	2025	1.95	2.66	–	535	0.073	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	3447⁽¹⁾	–	–
Cavallo et al.	2024	1.34	3.79	–	138	-1.610	–	–	–
Hunt & Reffert	2023	2.23	3.05	2.63	154	–	–	–	–
Cantat-Gaudin et al.	2020	2.37	2.28	–	302	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 962	37.3	269.88	-26.66	0.4	2.11	0.4	-10.23	0.0
CWWDL 13663	17.2	269.87	-26.65	0.41	2.1	0.4	-10.18	0.0

💡 Note: The % column shows the percentage of members that UBC 92 shares with each listed object.

Visualization

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