The constellation is determined by the date of the solar calendar. The date of June 6, 2000 in the solar calendar is July 7, and the constellation of that day is Cancer.
Lunar calendar: the sixth day of June in the Year of the Loong.
Branches: Chen Geng, Ren Wu, Bing Yin?
Gregorian calendar: Friday, July 7, 2000, Cancer.
Source: Hua.com.