UBC 424

0.70 UTI

0.57

C_N

1.0

C_dens

0.75

C_C3

0.6

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 65

Radius (P>50% members) 4.1 [arcmin]

C_N 0.57 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.6 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UBC 424 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, below 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 metallicity parameter (see Parameters). It is moderately studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 424 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	–	50.968	51.239	0.435	0.006	-1.694	-40.764
Li et al.	2025	50.967	51.237	0.413	0.073	-1.67	–
Almeida et al.	2025	50.992	51.261	–	–	–	–
Zhang et al.	2024	50.959	51.238	–	–	–	–
Hunt & Reffert	2024	50.958	51.238	0.443	0.001	-1.68	-40.765
Cavallo et al.	2024	50.972	51.262	0.443	–	–	–
Hunt & Reffert	2023	50.958	51.238	0.443	0.001	-1.68	-40.765
Almeida et al.	2023	50.998	51.268	–	–	–	–
Dias et al.	2021	50.992	51.261	0.396	0.088	-1.607	–
Cantat-Gaudin et al.	2020	50.967	51.237	0.413	0.073	-1.67	–
Castro-Ginard et al.	2020	50.976	51.258	0.42	0.067	-1.646	–

💡 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]	Bfr	BSS
Li et al.	2025	1.78	1.65	–	744	-0.137	–	–	–
Almeida et al.	2025	2.08	1.91	–	430	–	422	–	–
Zhang et al.	2024	–	–	–	–	-0.168*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	375*	–	–
Cavallo et al.	2024	2.12	1.77	–	372	0.330	–	–	–
Hunt & Reffert	2023	2.06	1.58	1.25	435	–	–	–	–
Almeida et al.	2023	1.96	1.97	–	493	-0.139	303*	0.62	–
Dias et al.	2021	2.08	1.91	–	430	-0.074	–	–	–
Cantat-Gaudin et al.	2020	2.25	1.68	–	389	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 238	66.2	50.97	51.24	0.44	-0.01	-1.69	-40.76	0.01

💡 Note: The % column shows the percentage of members that UBC 424 shares with each listed object.

Visualization

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