1-10 of 10
Authors: Hisashi Hayakawa
Journal Article
An Overview of Sunspot Observations in the Early Maunder Minimum: 1645–1659 Open Access
Monthly Notices of the Royal Astronomical Society, Volume 528, Issue 4, March 2024, Pages 6280–6291, https://doi.org/10.1093/mnras/stad3922
Published: 20 December 2023
Journal Article
Analyses for graphical records for a total solar eclipse in 1230 May: a possible reference for the ‘Medieval Grand Maximum’ Open Access
Monthly Notices of the Royal Astronomical Society, Volume 530, Issue 3, May 2024, Pages 3150–3159, https://doi.org/10.1093/mnras/stad3874
Published: 10 December 2023
Journal Article
Analyses of Equatorward Auroral Extensions during the Extreme Geomagnetic Storm on 15 July 1959 Open Access
Monthly Notices of the Royal Astronomical Society, Volume 527, Issue 3, January 2024, Pages 7298–7305, https://doi.org/10.1093/mnras/stad3556
Published: 17 November 2023
Journal Article
Katsue Misawa's sunspot observations in 1921–1934: a primary reference for the Wolfer–Brunner transition Open Access
Monthly Notices of the Royal Astronomical Society, Volume 532, Issue 4, August 2024, Pages 4289–4303, https://doi.org/10.1093/mnras/stad2791
Published: 14 September 2023
Journal Article
The extreme solar and geomagnetic storms on 1940 March 20–25 Open Access
Monthly Notices of the Royal Astronomical Society, Volume 517, Issue 2, December 2022, Pages 1709–1723, https://doi.org/10.1093/mnras/stab3615
Published: 13 December 2021
Journal Article
Reanalyses of the sunspot observations of Fogelius and Siverus: two ‘long-term’ observers during the Maunder minimum Free
Monthly Notices of the Royal Astronomical Society, Volume 506, Issue 1, September 2021, Pages 650–658, https://doi.org/10.1093/mnras/staa2965
Published: 07 October 2020
Journal Article
Intensity and time series of extreme solar-terrestrial storm in 1946 March Free
Monthly Notices of the Royal Astronomical Society, Volume 497, Issue 4, October 2020, Pages 5507–5517, https://doi.org/10.1093/mnras/staa1508
Published: 02 June 2020
Journal Article
Sunspot observations by Hisako Koyama: 1945–1996 Free
Monthly Notices of the Royal Astronomical Society, Volume 492, Issue 3, March 2020, Pages 4513–4527, https://doi.org/10.1093/mnras/stz3345
Published: 19 December 2019
Journal Article
Occurrence of great magnetic storms on 6–8 March 1582 Free
Monthly Notices of the Royal Astronomical Society, Volume 487, Issue 3, August 2019, Pages 3550–3559, https://doi.org/10.1093/mnras/stz1401
Published: 24 June 2019
Journal Article
The extreme space weather event in September 1909 Free
Monthly Notices of the Royal Astronomical Society, Volume 484, Issue 3, April 2019, Pages 4083–4099, https://doi.org/10.1093/mnras/sty3196
Published: 27 November 2018
