13 Zodiac Signs

13 Zodiac Signs and Their Dates

Do you know that your zodiac sign is on the apparent path (the ecliptic with twelve constellations) of the Sun across the celestial sphere over the course of the year? Do you know that the Sun was above your zodiac sign when you were born? However, it was already the matter over 2000 years ago. Now, the date of zodiac signs have changed and it is no longer consistent with the astronomical phenomenon.
Due to the change of the earth's axis and the movement of solar system and stars, the current positions of zodiac signs are different with that of 2000 years ago. Since the earth's axis swings in a circle of 26000 years, the ecliptic position also changes in the sky. As a result, the time of the Sun arriving at a constellation would delay about one month every 2000 years. In addition to the twelve zodiac signs, the current ecliptic also spans the thirteenth constellation Ophiuchus which is located between Scorpio and Sagittarius. If you think you are under the Aquarius sign, you might be a Piscean while the original Scorpian might be a Sagittarian. The huge Scorpio also needs to be redesigned, perhaps only including people born on between November 23 and 29 while people born on between November 29 and December 17 should be under the Ophiuchus rather than Sagittarius sign. In 1982, the international astronomical conference modified the constellation range and approved Ophiuchus as the thirteenth onstellation.

NASA New 13 Zodiac Signs and Their Dates
Zodiac Sign Signs Date of Birth
(Traditional 12 Constellations)
Date of Birth
(Present 13 Constellations)
Element Ruling Planet
Aries Mar 21 - Apr 20 April 19 - May 13 Fire Mars
Taurus Apr 21 - May 21 May 14 - June 19 Earth Venus
Gemini May 22 - Jun 21 June 20 - July 20 Air Mercury
Cancer Jun 22 - July 22 July 21 - Aug. 9 Water Moon
Leo July 23 - Aug 22 Aug. 10 - Sept. 15 Fire Sun
Virgo Aug 23 - Sep 22 Sept. 16 - Oct. 30 Earth Mercury
Libra Sep 23 - Oct 22 Oct. 31  -Nov. 22 Air Venus
Scorpio Oct 23 - Nov 22 Nov. 23 - 29 Water Mars
Ophiuchus   Nov. 30 - Dec. 17 Fire Jupiter
Sagittarius Nov 23 - Dec 21 Dec. 18 - Jan.18 Fire Jupiter
Capricorn Dec 22 - Jan 20 Jan. 19 - Feb. 15 Earth Saturn
Aquarius Jan 21 - Feb 19 Feb. 16 - March 11 Air Saturn
Pisces Feb 20 - Mar 20 March 12 - April 18 Water Jupiter

About the 13th Zodiac - Ophiuchus

Ophiuchus in Astronomy
Ophiuchus is one of the constellations in the equatorial zone. Looking from the Earth, you will find it south of the Hercules, north of the Scorpio and Sagittarius, and west of the Milky Way. It is the only constellation which connects with another constellation Serpens, also the only one spanning celestial equator, galactic equator and ecliptic. Ophiuchus is huge and wide, just like a rectangle diagonally crossed by the celestial equator. Although it spans a very short range of the Milky Way, the center of the Milky Way is located within the Sagittarius not far from the Ophiuchus, where the Milky Way has a prominent part, forming the broadest area of the Milky Way. Ophiuchus is visible at latitudes between +80° and −80°.

Please click to learm more about  Ophiuchus.

Is there really a 13th zodiac sign?

Many people hold a wait-and-see or skeptical attitude toward the legendary 13th zodiac sign: is there really an Ophiuchus zodiac? What is the evidence of its existence?
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