Berkeley 50

(MWSC 3273)

0.84 UTI

0.8

C_N

1.0

C_dens

1.0

C_C3

0.69

C_lit

1.0

C_dup

N₅₀ (P>50% members) 238

Stellar density (N₅₀/rad) 63.4 [N/pc²]

C3 classification AA

C_N 0.8 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.69 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Berkeley 50 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above 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, metallicity, and mass parameters (see Parameters). It is moderately studied in the literature.

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

Distant Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Berkeley 50 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–	302.503	34.968	0.24	-3.376	-5.112	-28.783
Li et al.	2025	302.505	34.967	0.246	-3.398	-5.072	–
Almeida et al.	2025	302.486	34.963	–	–	–	–
Hunt & Reffert	2024	302.507	34.968	0.237	-3.369	-5.13	–
Cavallo et al.	2024	302.494	34.966	0.236	–	–	–
Hunt & Reffert	2023	302.507	34.968	0.237	-3.369	-5.13	–
Just et al.	2023	302.515	34.967	–	–	–	–
Dias et al.	2021	302.486	34.963	0.243	-3.387	-5.081	–
Cantat-Gaudin et al.	2020	302.505	34.967	0.246	-3.398	-5.072	–
Kharchenko et al.	2016	302.515	34.967	–	–	–	–
Dias et al.	2014	302.6	34.967	–	-3.35	-4.44	–
Kharchenko et al.	2013	302.52	34.97	–	-1.06	-2.39	–
Dias et al.	2002	302.6	34.967	–	-1.06	-2.39	–

💡 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–	3.37	2.39	2.32	170	0.072	907	–	–
Li et al.	2025	1.38	1.16	–	2105	0.072	–	–	–
Almeida et al.	2025	3.62	2.85	–	6	–	907	–	–
Hunt & Reffert	2024	–	–	–	–	–	2344⁽¹⁾	–	–
Cavallo et al.	2024	4.15	2.92	–	117	0.670	–	–	–
Hunt & Reffert	2023	3.79	3.00	2.32	52	–	–	–	–
Just et al.	2023	–	–	–	237	–	569	–	–
Dias et al.	2021	3.62	2.85	–	6	-0.162	–	–	–
Cantat-Gaudin et al.	2020	3.37	2.12	–	76	–	–	–	–
Kharchenko et al.	2016	1.95	2.39	–	237	–	–	–	–
Kharchenko et al.	2013	1.95	2.39	–	237	–	–	–	–
Dias et al.	2002	2.65	2.33	–	224	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 138	97.1	302.5	34.97	0.24	-3.38	-5.11	-28.78	0.04
OC 0101	18.5	302.51	34.97	0.23	-3.37	-5.13	–	0.0

💡 Note: The % column shows the percentage of members that Berkeley 50 shares with each listed object.

Visualization

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