Henri Joseph Anastase Perrotin, French astronomer (born 1845)

Henri Joseph Anastase Perrotin was a French astronomer and a discoverer of minor planets. Some sources give his middle name as Athanase.

February 29 is a leap day —an intercalary date added periodically to create leap years in the Julian and Gregorian calendars. It is the 60th day of a leap year in both Julian and Gregorian calendars, and 306 days remain until the end of the leap year. It is the last day of February in leap years only. It is also the last day of meteorological winter in the Northern Hemisphere and the last day of meteorological summer in the Southern Hemisphere in leap years.