Berkeley 37

(MWSC 1180; OCL 551; FSR 1119; FoF 1976)

0.91 UTI

0.79

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 197

Stellar density (N₅₀/rad) 10.1 [N/pc²]

C3 classification AB

C_N 0.79 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 37 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, well above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is very well-studied in the literature.

Distant Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for Berkeley 37 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–	110.074	-0.998	0.184	-1.063	0.71	77.945
Li et al.	2025	110.075	-1.002	0.197	-1.113	0.682	–
Hu & Soubiran	2025	110.075	-1.004	–	–	–	–
Almeida et al.	2025	110.079	-1.004	–	–	–	–
Zhang et al.	2024	110.069	-0.998	–	–	–	–
Hunt & Reffert	2024	110.069	-0.998	0.183	-1.052	0.712	81.747
Cavallo et al.	2024	110.075	-1.003	0.182	–	–	–
Hunt & Reffert	2023	110.069	-0.998	0.183	-1.052	0.712	81.747
Almeida et al.	2023	110.079	-1.004	–	–	–	–
Just et al.	2023	110.07	-0.992	–	–	–	–
Dias et al.	2021	110.079	-1.004	0.212	-1.127	0.682	–
Cantat-Gaudin et al.	2020	110.075	-1.002	0.197	-1.113	0.682	–
Zhong et al.	2020	110.075	-1.002	–	-1.113	0.682	90.125
Cantat-Gaudin & Anders	2020	110.075	-1.002	0.197	-1.113	0.682	–
Liu & Pang	2019	110.073	-1.012	0.287	-1.045	0.551	–
Soubiran et al.	2018	110.075	-1.002	–	–	–	76.4
Bica et al.	2019	110.077	-1.0	–	–	–	–
Cantat-Gaudin et al.	2018	110.075	-1.002	0.197	-1.113	0.682	–
Loktin & Popova	2017	110.07	-1.044	–	6.244	-4.653	–
Kharchenko et al.	2016	110.07	-0.992	–	–	–	–
Dias et al.	2014	110.1	-1.1	–	-2.44	5.44	–
Kharchenko et al.	2013	110.077	-0.994	–	6.88	-4.6	–
Gozha et al.	2012	110.1	-1.1	–	–	–	–
Bukowiecki et al.	2011	110.071	-1.001	–	–	–	–
Dias et al.	2002	110.1	-1.1	–	-2.44	5.44	–

💡 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–	4.42	0.29	0.34	996	-0.309	651	0.52	–
Li et al.	2025	5.55	0.23	–	647	0.229	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.360⁽⁵⁾	–	–	–
Almeida et al.	2025	4.22	0.30	–	1045	–	704	–	–
Zhang et al.	2024	–	–	–	–	-0.225⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1435⁽¹⁾	–	–
Cavallo et al.	2024	3.18	0.57	–	1318	-0.800	–	–	–
Hunt & Reffert	2023	5.03	0.07	0.34	1019	–	–	–	–
Almeida et al.	2023	4.40	0.29	–	991	-0.222	598⁽¹⁾	0.52	–
Just et al.	2023	–	–	–	631	–	577	–	–
Dias et al.	2021	4.22	0.30	–	1045	-0.309	–	–	–
Cantat-Gaudin et al.	2020	4.19	0.17	–	933	–	–	–	–
Zhong et al.	2020	4.82	0.84	–	8800	-0.329	–	–	–
Cantat-Gaudin & Anders	2020	4.42	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	676	0.500	–	–	–
Soubiran et al.	2018	4.42	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	4.42	–	–	–	–	–	–	–
Loktin & Popova	2017	4.17	0.00	–	2399	–	–	–	–
Kharchenko et al.	2016	4.82	0.84	–	631	–	–	–	–
Kharchenko et al.	2013	4.82	0.84	–	631	-0.380	–	–	–
Gozha et al.	2012	5.62	–	–	1585	-0.380	–	–	–
Bukowiecki et al.	2011	4.97⁽¹⁾	0.00	–	1000	–	–	–	–
Dias et al.	2002	5.25	0.16	–	631	-0.050	–	–	–

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

Visualization

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