zodiac?

the zodiac....

In both astrology and historical astronomy, the zodiac (Greek: ζῳδιακός, zōidiakos) is a circle of twelve 30° divisions of celestial longitude that are centered upon the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year. The paths of the Moon and visibleplanets also remain close to the ecliptic, within the belt of the zodiac, which extends 8-9° north or south of the ecliptic, as measured in celestial latitude. Because the divisions are regular, they do not correspond exactly to the boundaries of the twelve constellations after which they are named.

Historically, these twelve divisions are called signs. Essentially, the zodiac is a celestial coordinate system, or more specifically an ecliptic coordinate system, which takes the ecliptic as the origin of latitude, and the position of the Sun at vernal equinox as the origin of longitude.

Sign[38]				Constellation
Name	Symbol	Tropical zodiac	Sidereal zodiac	Name	IAU boundaries[39]	Solar stay[39]	Brightest star
Aries		21 March – 20 April	15 April – 15 May	Aries	19 April – 13 May	25 days	Hamal
Taurus		21 April – 21 May	16 May – 15 June	Taurus	14 May – 19 June	37 days	Aldebaran
Gemini		22 May – 21 June	16 June – 15 July	Gemini	20 June – 20 July	31 days	Pollux
Cancer		22 June – 22 July	16 July – 15 August	Cancer	21 July – 9 August	20 days	Al Tarf
Leo		23 July – 22 August	16 August – 15 September	Leo	10 August – 15 September	37 days	Regulus
Virgo		23 August – 23 September	16 September – 15 October	Virgo	16 September – 30 October	45 days	Spica
Libra		24 September – 23 October	16 October – 15 November	Libra	31 October – 22 November	23 days	Zubeneschamali
Scorpio		24 October – 22 November	16 November – 15 December	Scorpius	23 November – 29 November	7 days	Antares
Ophiuchus		n/a		Ophiuchus	30 November – 17 December	18 days	Rasalhague
Sagittarius		23 November – 21 December	16 December – 14 January	Sagittarius	18 December – 18 January	32 days	Kaus Australis
Capricorn		22 December – 20 January	15 January – 14 February	Capricornus	19 January – 15 February	28 days	Deneb Algedi
Aquarius		21 January – 19 February	15 February – 14 March	Aquarius	16 February – 11 March	24 days	Sadalsuud
Pisces		20 February – 20 March	15 March – 14 April	Pisces	12 March – 18 April	38 days	Eta Piscium