The 12 Signs of the Zodiac

In astronomy, the apparent path the Sun traces around Earth is called the "ecliptic." It spans about 16 degrees in width and forms a complete 360-degree circle around the planet. The ecliptic plane includes the orbits of all planets except Pluto, and it also encompasses the constellations. Roughly one constellation covers every 30 degrees, for a total of twelve. To the ancient Greeks, these constellations resembled various animals, which is where the twelve names originate.

The twelve constellations along the ecliptic each represent a sphere of planetary influence, indicating potential areas of development. Each of the 12 zodiac signs has its own ruling planet, and every planet exerts its influence in particular signs. For example, Aries is known for courage and vitality; when the Moon is in Aries, emotions tend to be expressed boldly and energetically. Likewise, when Mercury is in Aries, thinking and reasoning are marked by boldness, courage, and vitality.

That said, we first need to understand the basic patterns expressed by each zodiac sign. Once you grasp the core traits of each sign, you can identify the positions of your own planets and make the most of those strengths.

Zodiac Sign   Date Range          

Aries   March 21 - April 20

Taurus   April 21 - May 21

Gemini   May 22 - June 21

Cancer   June 22 - July 22

Leo   July 23 - August 23

Virgo   August 24 - September 23

Libra   September 24 - October 23

Scorpio   October 24 - November 22

Sagittarius   November 23 - December 21

Capricorn   December 22 - January 20

Aquarius   January 21 - February 19

Pisces   February 20 - March 20