solar cycle 23 References solar cycle 23 astronomy Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: solar cycle…number of sunspots seen in solar cycle 23. This decrease in the number of sunspots has led some solar physicists to conclude that the Sun may be in a period of inactivity like the Dalton minimum. Read More…number of sunspots seen in solar cycle 23. This decrease in the number of sunspots has led some solar physicists to conclude that the Sun may be in a period of inactivity like the Dalton minimum. Read More