Galileo's observation of sunspots. Illustration and Italian text about the pioneering sunspot observations made over several months in 1612 by Italian astronomer Galileo Galilei (1564-1642). Galileo was one of the first people to observe sunspots,making his observations using his telescope to observe them indirectly and at sunset and sunrise. He published his observations in 'Istoria e Dimostrazioni Intorno Alle Macchie Solari e Loro Accidenti' (1613,History and Demonstrations Concerning Sunspots and their Properties). Sunspots are areas of magnetic activity that are cooler than the rest of the Sun's surface | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Library of Congress |
Taille de l’image : | 2486 px × 3543 px |
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