Berkeley 30

(MWSC 1034; Biurakan 9; OCL 534; FSR 1058)

0.91 UTI

0.78

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 175

Stellar density (N₅₀/rad) 24.4 [N/pc²]

C3 classification AB

C_N 0.78 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Berkeley 30 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

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

Distant Moderate extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Berkeley 30 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–	104.437	3.23	0.185	-0.197	-0.308	51.398
Li et al.	2025	104.438	3.229	0.164	-0.252	-0.33	–
Hu & Soubiran	2025	104.402	3.261	–	–	–	–
Almeida et al.	2025	104.436	3.229	–	–	–	–
Hunt & Reffert	2024	104.437	3.228	0.176	-0.218	-0.314	46.406
Cavallo et al.	2024	104.402	3.261	0.178	–	–	–
Hunt & Reffert	2023	104.437	3.228	0.176	-0.218	-0.314	46.406
Almeida et al.	2023	104.436	3.23	–	–	–	–
Just et al.	2023	104.442	3.219	–	–	–	–
Jaehnig et al.	2021	104.444	3.228	0.183	-0.248	-0.323	–
Rain et al.	2021	104.438	3.229	0.164	-0.252	-0.33	–
Dias et al.	2021	104.436	3.229	0.159	-0.245	-0.327	–
Cantat-Gaudin et al.	2020	104.438	3.229	0.164	-0.252	-0.33	–
Cantat-Gaudin & Anders	2020	104.438	3.229	0.164	-0.252	-0.33	–
Bica et al.	2019	104.431	3.231	–	–	–	–
Cantat-Gaudin et al.	2018	104.438	3.229	0.164	-0.252	-0.33	–
Loktin & Popova	2017	104.43	3.218	–	0.547	-0.267	–
Kharchenko et al.	2016	104.442	3.219	–	–	–	–
Dias et al.	2014	104.425	3.217	–	-0.84	-3.47	–
Kharchenko et al.	2013	104.449	3.217	–	1.27	-0.75	–
Gozha et al.	2012	104.425	3.217	–	–	–	–
van den Bergh	2006	104.425	3.217	–	–	–	–
Dias et al.	2002	104.425	3.217	–	-0.84	-3.47	–

💡 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–	4.79	1.55	1.7	313	-0.203	1138	0.66	0.0
Li et al.	2025	4.41	1.55	–	430	-0.157	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.210⁽⁵⁾	–	–	–
Almeida et al.	2025	4.15	1.57	–	455	–	732	–	–
Hunt & Reffert	2024	–	–	–	–	–	1367⁽¹⁾	–	–
Cavallo et al.	2024	3.24	1.60	–	759	-0.580	–	–	–
Hunt & Reffert	2023	4.56	1.32	1.70	461	–	–	–	–
Almeida et al.	2023	4.09	1.60	–	439	-0.199	909⁽¹⁾	0.66	–
Just et al.	2023	–	–	–	313	–	1945	–	–
Jaehnig et al.	2021	5.57⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	5.19	1.55	–	302	–	–	–	0
Dias et al.	2021	4.15	1.57	–	455	-0.206	–	–	–
Cantat-Gaudin et al.	2020	5.40	1.27	–	295	–	–	–	–
Cantat-Gaudin & Anders	2020	5.19	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	5.19	–	–	–	–	–	–	–
Loktin & Popova	2017	6.21	1.01	–	537	–	–	–	–
Kharchenko et al.	2016	4.98	1.62	–	313	–	–	–	–
Kharchenko et al.	2013	4.98	1.62	–	313	–	–	–	–
Gozha et al.	2012	4.79	–	–	302	0.100	–	–	–
van den Bergh	2006	4.79	1.55	–	302	–	–	–	–
Dias et al.	2002	4.79	1.55	–	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
OC 0350	14.9	104.43	3.24	0.19	-0.2	-0.3	48.19	0.0

💡 Note: The % column shows the percentage of members that Berkeley 30 shares with each listed object.

Visualization

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