Berkeley 19

(MWSC 527; OCL 450)

0.86 UTI

0.77

C_N

0.77

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N_m (P>50%) 165

Core radius and density 1.9 [pc], 3.9 [pc^-2]

C3 classification AB

C_N 0.77 Rich
C_dens 0.77 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 19 is a rich, dense object of high C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is very well-studied in the literature.

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

Very distant Moderate extinction Near-solar metallicity Old Contains BSS

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.28 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.28 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.0366, e_all=0.0788.

Ahumada & Lapasset (2007)
The cleaned colour-magnitude diagram in (1980AJ.....85..700C) was examined.

Data

🔍 Search references for Berkeley 19 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–	81.019	29.574	0.158	0.7	-0.306	19.324
Otto et al.	2026	81.013	29.572	–	0.76	-0.33	17.7
Guerco et al.	2025	81.0	29.8	0.26	0.48	-0.1	18.1
Hu & Soubiran	2025	81.024	29.577	–	–	–	–
Almeida et al.	2025	81.017	29.587	–	–	–	–
Zhang et al.	2024	81.013	29.572	–	–	–	–
Hunt & Reffert	2024	81.013	29.572	0.132	0.658	-0.33	16.031
Cavallo et al.	2024	81.024	29.577	0.132	–	–	–
Hunt & Reffert	2023	81.013	29.572	0.132	0.658	-0.33	16.031
Just et al.	2023	80.993	29.567	–	–	–	–
Jadhav & Subramaniam	2021	81.014	29.575	–	–	–	–
Jaehnig et al.	2021	81.006	29.577	0.158	0.729	-0.302	–
Netopil et al.	2022	81.014	29.575	–	–	–	17.76
Rain et al.	2021	81.014	29.575	0.135	0.757	-0.329	–
Dias et al.	2021	81.017	29.587	0.11	0.758	-0.31	–
Spina et al.	2021	81.009	29.576	0.124	0.774	-0.311	–
Cantat-Gaudin et al.	2020	81.014	29.575	0.135	0.757	-0.329	–
Donor et al.	2020	81.003	29.567	–	0.64	-0.23	17.8
Zhong et al.	2020	81.014	29.575	–	0.757	-0.329	1.009
Cantat-Gaudin & Anders	2020	81.014	29.575	0.135	0.757	-0.329	–
Soubiran et al.	2018	81.014	29.575	–	–	–	17.65
Bica et al.	2019	81.016	29.572	–	–	–	–
Cantat-Gaudin et al.	2018	81.014	29.575	0.135	0.757	-0.329	–
Sampedro et al.	2017	81.025	29.6	–	2.22	-3.02	–
Kharchenko et al.	2016	80.993	29.567	–	–	–	–
Kharchenko et al.	2013	81.003	29.567	–	2.55	-2.2	–
Gozha et al.	2012	81.025	29.6	–	–	–	–
Kharchenko et al.	2012	81.003	29.567	–	2.55	-2.2	–
Bukowiecki et al.	2011	81.004	29.574	–	–	–	–
Glushkova et al.	2010	81.012	29.571	–	–	–	–
Ahumada & Lapasset	2007	81.025	29.6	–	–	–	–
van den Bergh	2006	81.025	29.6	–	–	–	–
Chen et al.	2003	81.022	29.6	–	–	–	–
Dias et al.	2002	81.025	29.6	–	3.36	-4.55	–
Lynga	1987	81.022	29.6	–	–	–	–

💡 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–	5.59	1.26	2.26	2512	-0.360	874	–	1
Otto et al.	2026	–	–	–	2188	-0.350⁽¹⁵⁾	–	–	–
Guerco et al.	2025	–	–	–	2190	-0.360	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.280⁽⁵⁾	–	–	–
Almeida et al.	2025	5.84	1.47	–	2070	–	924	–	–
Zhang et al.	2024	–	–	–	–	-0.366⁽¹⁾	–	–	–
Hunt & Reffert	2024	5.68	1.33	2.26	586	–	823⁽¹⁾	–	–
Cavallo et al.	2024	4.70	1.00	–	4898	-0.120	–	–	–
Hunt & Reffert	2023	5.68	1.33	2.26	586	–	–	–	–
Just et al.	2023	–	–	–	3162	–	399	–	–
Spina et al.	2022	–	–	–	–	-0.320	–	–	–
Jadhav & Subramaniam	2021	6.58	0.85	–	2188	–	1402	–	1⁽¹⁾
Jaehnig et al.	2021	6.54⁽¹⁾	–	–	–	–	–	–	–
Netopil et al.	2022	5.50⁽¹⁾	–	–	2512	-0.320⁽¹⁾	–	–	–
Rain et al.	2021	6.11	1.01	–	2512	–	–	–	13
Dias et al.	2021	5.84	1.47	–	2070	-0.308	–	–	–
Spina et al.	2021	4.78	–	–	2188	-0.323⁽²⁰⁾	–	–	–
Cantat-Gaudin et al.	2020	6.58	0.85	–	2188	–	–	–	–
Kounkel et al.	2020	4.96	1.34	–	1445	–	–	–	–
Donor et al.	2020	–	–	–	–	-0.320	–	–	–
Zhong et al.	2020	6.11⁽¹⁾	1.26	–	9500	-0.395	–	–	–
Cantat-Gaudin & Anders	2020	6.11	–	–	–	–	–	–	–
Soubiran et al.	2018	6.11	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	6.11	–	–	–	–	–	–	–
Kharchenko et al.	2016	4.80	1.26	–	3162	–	–	–	–
Kharchenko et al.	2013	4.80	1.26	–	3162	-0.500	–	–	–
Gozha et al.	2012	4.83	–	–	3090	-0.500	–	–	–
Kharchenko et al.	2012	4.80	1.26	–	3162	-0.500	–	–	–
Bukowiecki et al.	2011	4.23⁽¹⁾	1.17	–	2512	–	–	–	–
Glushkova et al.	2010	3.00	1.92	–	1778	–	–	–	–
Ahumada & Lapasset	2007	–	1.26	–	3090	–	–	–	1
van den Bergh	2006	4.83	1.26	–	3090	–	–	–	–
Chen et al.	2003	4.83	1.26	–	3090	-0.500⁽¹⁾	–	–	–
Dias et al.	2002	7.87	1.01	–	2512	-0.500	–	–	–
Lynga	1987	4.00	–	–	3020	-0.500	–	–	–

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

Visualization

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