If you look at what constellation you are, should you look at the lunar calendar or the solar calendar?

The twelve constellations look at the solar calendar, not the lunar calendar, because the twelve constellations originated in the west.

The twelve constellations, or zodiac signs, are astrologically described areas where the sun passes through the zodiac on the celestial sphere, including Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces.

Extended data:

The "constellation" we usually say refers to the "sun constellation"; That is to say, people on the earth are the center, and at the same time, we can see which constellation the sun is in orbit (Greek zodiac: meaning ~ circle made by animals, also known as "zodiac"), so we can say what constellation that person is.

Astrology believes that each constellation has a corresponding relationship with all aspects of human beings.

References:

Twelve constellations _ Baidu Encyclopedia