Constellations are determined by the date of the solar calendar. 1984 The Gregorian calendar date of the eighth day of the sixth lunar month is July 6th, and the constellation of that day is Cancer.
Lunar calendar:1June 8, 984
Branches and branches: Jia Zi Geng Wu Xin Chou
Gregorian calendar:1Friday, July 6, 984, Cancer.
Source: Hua.com.