Is the algorithm of constellation based on lunar calendar or solar calendar?

Constellations are divided according to the dates in the Gregorian calendar. First, you need to know your date of birth in Gregorian calendar, and then compare the following information.

Aries: March 2 1

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April 20(th)

Taurus: April 2 1

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May 2 1

Gemini: May 22nd.

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June 2 1

Cancer: June 22

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July 22(nd)

Leo: July 23rd.

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August 23 rd

Virgo: August 24

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September 23(rd)

Libra: September 24

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65438+23 00 10 month

Scorpio: 65438+100 on October 24th.

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165438+1October 22nd

Sagittarius:165438+1October 23rd.

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65438+February 2 1

Capricorn: 65438+February 22nd.

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65438+1October 20th

Aquarius: 65438+1October 2 1.

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February 65438, 2009

Pisces: February 20

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March 20