How is the constellation correct? I only know how to calculate the lunar calendar.

Constellations are divided according to the solar calendar. According to the date of your birth, for example, 3/2 1-4/ 19 in the solar calendar is Aries.

The following are twelve constellations for your reference:

Constellation name, date, constellation attribute,

Aries: fire sign

Taurus 04/20- 0520 Earth Sign

Gemini: air signs

Cancer: water sign

Leo fire sign 07/23-08/22

Virgo: Earth sign

Libra: air signs

Scorpio10/23-11/21water sign

Sagittarius11/22-12/21fire sign

Capricorn12/22-0119 earth sign.

Aquarius: air signs

Pisces: water sign