1. Editorial Appreciation

   • John Leibacher
   • Cristina H. Mandrini
   • Michael S. Wheatland

   EditorialNotes 14 January 2020 Article: 9

2. Long-term Periodicities in North–south Asymmetry of Solar Activity and Alignments of the Giant Planets

   • J. Javaraiah

   OriginalPaper 14 January 2020 Article: 8

   

3. Peculiar Solar Sources and Geospace Disturbances on 20–26 August 2018

   • A. A. Abunin
   • M. A. Abunina
   • I. M. Chertok

   OriginalPaper 14 January 2020 Article: 7

   

4. Differential Emission Measure Plasma Diagnostics of a Long-Lived Coronal Hole

   • Jonas Saqri
   • Astrid M. Veronig
   • Yang Su

   OriginalPaper Open access 10 January 2020 Article: 6

   

5. A Non-Linear Magnetic Field Calibration Method for Filter-Based Magnetographs by Multilayer Perceptron

   • Jingjing Guo
   • Xianyong Bai
   • Kaifan Ji

   OriginalPaper 09 January 2020 Article: 5

   

6. Open-field Coronal Structures Neighbouring the Sunspot of AR 8535

   • B. I. Ryabov
   • A. Vrublevskis

   OriginalPaper 06 January 2020 Article: 4

   

7. Records of Auroras in Arabic Historical Sources: Additional List and Preliminary Analysis

   • Mohamed Reda Bekli
   • Ilhem Chadou

   OriginalPaper 02 January 2020 Article: 3

   

8. New Homogeneous Dataset of Solar EUV Synoptic Maps from SOHO/EIT and SDO/AIA

   • A. Hamada
   • T. Asikainen
   • K. Mursula

   OriginalPaper Open access 31 December 2019 Article: 2

   

9. On the Relationships Between Sunspot Number and Solar Radio Flux at 10.7 Centimeters

   • Daniel Okoh
   • Eucharia Okoro

   OriginalPaper 31 December 2019 Article: 1