The Magnetic Polarity of Sun-Spots

1919/04/01 by George E. Hale, Ferdinand Ellerman, Seth B. Nicholson +2 · 18 citations
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Solar and Space Plasma Dynamics #Stellar, planetary, and galactic studies

paper · doi:10.1086/142452

crossref issued 1919/04/01 · crossref published 1919/04/01 · crossref published-print 1919/04/01 · openalex publication_date 1919/04/01 · crossref created 2002/07/26 · crossref deposited 2020/11/06 · openalex created_date 2025/10/10 · crossref indexed 2026/07/21 · openalex updated_date 2026/07/22

Cited by

• Brightenings AnD Polarity Inversion Tracking (BADPIT) method for studying solar active region evolution before major solar flares
• Stellar coronal response to differential rotation and flux emergence
• Supergranular-scale magnetic flux emergence beneath an unstable filament
• ACTIVE LONGITUDES REVEALED BY LARGE-SCALE AND LONG-LIVED CORONAL STREAMERS
• Coronal Magnetic Structure of Earthbound CMEs and In Situ Comparison
• Solar-Cycle Characteristics in Kodaikanal Sunspot Area: North–South Asymmetry, Phase Distribution and Gnevyshev Gap
• The crucial role of surface magnetic fields for the solar dynamo
• Effects of Radiative Diffusion on Thin Flux Tubes in Turbulent Solar-like Convection
• Evolution of the Sun’s activity and the poleward transport of remnant magnetic flux in Cycles 21–24
• Photospheric Velocity Structures during the Emergence of Small Active Regions on the Sun
• Active-region Tilt Angles from White-light Images and Magnetograms: The Role of Magnetic Tongues
• Characteristics of Anemone Active Regions Appearing in Coronal Holes Observed with theYohkohSoft X‐Ray Telescope
• TILT ANGLE AND FOOTPOINT SEPARATION OF SMALL AND LARGE BIPOLAR SUNSPOT REGIONS OBSERVED WITH HMI
• Study of Solar Energetic Particles: their Source Regions, Flares and CMEs during Solar Cycles 23-24
• Active Longitude and Coronal Mass Ejection Occurrences
• A New Tool for Predicting the Solar Cycle: Correlation Between Flux Transport at the Equator and the Poles
• Tests of Sunspot Number Sequences: 4. Discontinuities Around 1946 in Various Sunspot Number and Sunspot-Group-Number Reconstructions
• Image patch analysis of sunspots and active regions
• Magnetic energies (and some other parameters) in solar active regions of different Hale and McIntosh classes: statistical analysis for 2010-2024
• LARGE-SCALE SOFT X-RAY LOOPS AND THEIR MAGNETIC CHIRALITY IN BOTH HEMISPHERES
• Average motion of emerging solar active region polarities
• Joy's law (astronomy) [wikipedia]