George Ellery Hale Boeken

Explore the mysteries of the cosmos with celebrated astronomer George Ellery Hale. In this groundbreaking study, Hale offers new insights into the rotation of the sun and the behavior of its calcium flocculi, shedding light on one of the most compelling questions in modern astronomy.

The Rumford Spectroheliograph was a groundbreaking device used to study the sun's magnetic field and solar activity. In this book, Ellerman and Hale describe the development and use of the instrument, as well as their findings and implications for the field of astronomy. With numerous illustrations and photographs, this book is an important resource for anyone interested in the history of astronomy and solar physics.