12 constellation has the longest monthly period.

The birth month of 12 constellation is as follows:

1, Aquarius: 65438+1October 20th-February 18.

2. Pisces: February1September-March 20th.

3. Aries: March 21-April 19.

4. Taurus: April 20-May 20.

5. Gemini: May 2 1-June 21.

6. Cancer: June 22nd-July 22nd.

7. Leo: July 23rd-August 22nd.

8. Virgo: August 23rd-September 22nd.

9. Libra: September 23rd-65438+1October 23rd.

10, Scorpio:101October 24-11October 22.

1 1, Sagittarius:165438+1October 23rd-65438+February 2nd1.

12, Capricorn: 65438+February 22nd-65438+1October 19.