What is the constellation of July 27th in the lunar calendar?

The constellation is looking at the solar calendar. The solar calendar corresponding to the seventh day of the seventh lunar month in the year when you were born is your constellation.

Libra 1/2 1 ~ 2/ 18 Leo July 23rd to August 23rd.

Pisces 2/ 19 ~ 3/20 Virgo 8/24 ~ 9/22

Aries 3/2 1 ~ 4/20 Libra 9/23 ~ 10/23

Taurus 4/2 1 ~ 5/2 1 Scorpio10/24 ~1/22.

Gemini 5/22 ~ 6/2 1 Sagittarius11/23 ~121

Cancer June 22nd to July 22nd Capricorn 12/22 ~ 1/20