My date of birth is 1997. 10.20. What constellation am I?

Hello, the constellation is a fortune-telling thing for westerners. Because westerners don't have a lunar calendar, we should first convert the birthday of the lunar calendar into the solar calendar, and then look up the constellation table.

If it is Gregorian calendar 1997. 10.20, it is Libra;

If the lunar calendar is 1997. 10.20, the solar calendar is199719, which means Scorpio.