Solar Section

摘要

January saw a decrease in solar activity in the southern hemisphere which led to an overall fall for the total disk. All observers reported a blank disk on January 7 and from Jan 12 to 28 inclusive and most recorded a blank disk on Jan 5, 6, 8, 9, 10, 11 and 29. However the month was not without note as the first visible sunspot of Cycle 24 appeared on the disk at N307246", recorded as AR981.