Berkeley 53

(MWSC 3435; OCL 207; FSR 0289)

0.95 UTI

1.0

C_N

1.0

C_dens

1.0

C_C3

0.87

C_lit

1.0

C_dup

N₅₀ (P>50% members) 2015

Stellar density (N₅₀/rad) 80.9 [N/pc²]

C3 classification AA

C_N 1.0 Very rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.87 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 53 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as an extremely massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is well-studied in the literature.

Note: This object contains blue stragglers according to at least one source.

Distant High extinction Extremely massive Near-solar metallicity Intermediate age Contains BSS

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.56 (50th percentile).

Data

🔍 Search references for Berkeley 53 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–	313.983	51.059	0.257	-3.84	-5.669	-34.927
Otto et al.	2026	313.982	51.051	–	-3.79	-5.68	-35.8
Guerco et al.	2025	314.0	51.1	0.23	-3.83	-5.69	-36.2
Hunt & Reffert	2024	313.982	51.051	0.252	-3.83	-5.679	-34.459
Cavallo et al.	2024	313.983	51.061	0.248	–	–	–
Hunt & Reffert	2023	313.982	51.051	0.252	-3.83	-5.679	-34.459
Just et al.	2023	313.983	51.057	–	–	–	–
Jadhav & Subramaniam	2021	313.975	51.06	–	–	–	–
Spina et al.	2021	313.979	51.057	0.219	-3.797	-5.681	–
Cantat-Gaudin et al.	2020	313.975	51.06	0.247	-3.795	-5.682	–
Donor et al.	2020	313.988	51.06	–	-3.84	-5.65	-35.9
Cantat-Gaudin & Anders	2020	313.975	51.06	0.247	-3.795	-5.682	–
Soubiran et al.	2018	313.975	51.06	–	–	–	-34.9
Bica et al.	2019	313.979	51.045	–	–	–	–
Cantat-Gaudin et al.	2018	313.975	51.06	0.247	-3.795	-5.682	–
Loktin & Popova	2017	313.98	51.057	–	-0.973	-0.633	–
Kharchenko et al.	2016	313.983	51.057	–	–	–	–
Dias et al.	2014	314.15	51.083	–	-3.51	0.32	–
Kharchenko et al.	2013	313.987	51.06	–	-3.98	-2.54	–
Kharchenko et al.	2012	313.987	51.06	–	-3.98	-2.54	–
Bukowiecki et al.	2011	313.996	51.048	–	–	–	–
Glushkova et al.	2010	313.98	51.048	–	–	–	–
Dias et al.	2002	314.15	51.083	–	-3.51	0.32	–
Lynga	1987	314.14	51.025	–	–	–	–

💡 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–	3.42	4.64	2.44	978	-0.080	30500	–	17
Otto et al.	2026	–	–	–	977	-0.110⁽¹⁵⁾	–	–	–
Guerco et al.	2025	–	–	–	980	-0.100	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	37311⁽¹⁾	–	–
Cavallo et al.	2024	4.07	4.97	–	447	0.270	–	–	–
Hunt & Reffert	2023	3.33	5.46	2.44	565	–	–	–	–
Just et al.	2023	–	–	–	1230	–	1667	–	–
Spina et al.	2022	–	–	–	–	-0.080	–	–	–
Jadhav & Subramaniam	2021	3.42	4.42	–	977	–	30500	–	17⁽¹⁾
Spina et al.	2021	3.95	–	–	977	-0.074⁽²⁰⁾	–	–	–
Cantat-Gaudin et al.	2020	3.42	4.42	–	977	–	–	–	–
Kounkel et al.	2020	3.20	4.49	–	617	–	–	–	–
Donor et al.	2020	–	–	–	–	-0.080	–	–	–
Cantat-Gaudin & Anders	2020	3.62	–	–	–	–	–	–	–
Soubiran et al.	2018	3.62	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	3.62	–	–	–	–	–	–	–
Loktin & Popova	2017	3.11	4.03	–	257	–	–	–	–
Kharchenko et al.	2016	3.30	4.79	–	1230	–	–	–	–
Kharchenko et al.	2013	3.30	4.79	–	1230	–	–	–	–
Kharchenko et al.	2012	3.30	4.79	–	1230	–	–	–	–
Bukowiecki et al.	2011	3.86⁽¹⁾	4.20	–	1122	–	–	–	–
Glushkova et al.	2010	3.53	4.13	–	1413	–	–	–	–
Dias et al.	2002	3.10	4.79	–	1230	-0.090	–	–	–

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

Visualization

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