Constellations are determined by the date of the solar calendar. 1February 29, 985, the Gregorian calendar date is1April 8, and the constellation of that day belongs to.
Aries.
Lunar calendar: February 29th in the Year of the Ox.
Ganzhi: An Ugly Chen Geng Dinghai
Gregorian calendar:1April 9851Thursday, 8th, Aries
Source: Hua Wang.