Evershed effect Directory References Discover 9 American Political Scandals America’s 5 Most Notorious Cold Cases (Including One You May Have Thought Was Already Solved) Where Is “Old Zealand”? Is Australia an Island? 12 Greek Gods and Goddesses What Comes After Terabyte? Timeline of the 1990s Contents Ask the Chatbot a Question Evershed effect astronomy Ask the Chatbot a Question Learn about this topic in these articles:property of sunspots In John Evershed…a phenomenon sometimes called the Evershed effect.Read More Britannica ChatbotChatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.