Dear, constellations are divided according to the dates in the Gregorian calendar (Gregorian calendar and new calendar). Gregorian calendar1July 6, 999 (Tuesday) June 22 to July 22 is the constellation Cancer.
If it is the lunar calendar, the corresponding Gregorian calendar1July 6, 999+August 0999 16 (Monday) is July 23-August 22 of Leo.