<P> Sun sign astrologers take this basic twelve-fold division and relate all the current movements of all the planets to each other, using traditional rules to divine meanings for each sign separately . Because the Moon has the fastest apparent movement of all the heavenly bodies, it is often used as the main indicator of daily trends for sun sign astrology forecasts . </P> <P> Although William Lilly in the 17th century was the first newspaper astrologer, sun sign astrology was not invented until 1930 . The astrologer R.H. Naylor was claimed by his newspaper to have predicted the crash of the R101 airship . This led to pressure on Naylor to come up with a simplified system of astrology suitable for a newspaper column . After some experimentation, Naylor decided on sun signs . </P> <P> The following table shows the zodiac names in Latin, with their English translation and the individuals' names . It also shows the element and quality associated with each sign . The starting and ending dates of the sun sign are approximate, as they may differ from one year to another (by a day or so), due to the fact that the earth's orbit around the sun is not synchronous with earth's rotation (one year does not comprehend a whole number of days). The exact date and time of sign entrance / exit (which is corresponded to the 12 "mid-climates" within Chinese lunisolar calendar) must be obtained with appropriate software or with the help of an ephemeris . </P> <Table> <Tr> <Th> Symbol </Th> <Th> Sign names </Th> <Th> Individuals' names </Th> <Th> English name </Th> <Th> Element </Th> <Th> Quality <P> (Modality) </P> </Th> <Th> Polarity </Th> <Th> Associated <P> Celestial Body </P> </Th> <Th> period of Sun sign with approx . dates <P> 1 / 2 days variation </P> </Th> </Tr> <Tr> <Td> </Td> <Td> Capricorn </Td> <Td> Capricorn </Td> <Td> The Mountain Sea - Goat </Td> <Td> Earth </Td> <Td> Cardinal </Td> <Td> Negative </Td> <Td> Saturn </Td> <Td> Winter Solstice (December 22)--the day before Great Cold </Td> </Tr> <Tr> <Td> </Td> <Td> Aquarius </Td> <Td> Aquarian </Td> <Td> The Water - Bearer </Td> <Td> Air </Td> <Td> Fixed </Td> <Td> Positive </Td> <Td> Uranus (Saturn) </Td> <Td> Great Cold (January 20)--the day before Vernal Showers </Td> </Tr> <Tr> <Td> </Td> <Td> Pisces </Td> <Td> Piscean </Td> <Td> The Fish </Td> <Td> Water </Td> <Td> Mutable </Td> <Td> Negative </Td> <Td> Neptune (Jupiter) </Td> <Td> Vernal Showers (February 19)--the day before Vernal Equinox </Td> </Tr> <Tr> <Td> </Td> <Td> Aries </Td> <Td> Arian / Arien </Td> <Td> The Ram </Td> <Td> Fire </Td> <Td> Cardinal </Td> <Td> Positive </Td> <Td> Mars (Pluto) </Td> <Td> Vernal Equinox (March 21)--the day before Corn Rain </Td> </Tr> <Tr> <Td> </Td> <Td> Taurus </Td> <Td> Taurean </Td> <Td> The Bull </Td> <Td> Earth </Td> <Td> Fixed </Td> <Td> Negative </Td> <Td> Venus / Earth </Td> <Td> Corn Rain (April 20--the day before Corn Forms </Td> </Tr> <Tr> <Td> </Td> <Td> Gemini </Td> <Td> Geminian </Td> <Td> The Twins </Td> <Td> Air </Td> <Td> Mutable </Td> <Td> Positive </Td> <Td> Mercury </Td> <Td> Corn Forms (May 21)--the day before Summer Solstice </Td> </Tr> <Tr> <Td> </Td> <Td> Cancer </Td> <Td> Cancerian </Td> <Td> The Crab </Td> <Td> Water </Td> <Td> Cardinal </Td> <Td> Negative </Td> <Td> Moon </Td> <Td> Summer Solstice (June 21)--the day before Great Heat </Td> </Tr> <Tr> <Td> </Td> <Td> Leo </Td> <Td> Leo </Td> <Td> The Lion </Td> <Td> Fire </Td> <Td> Fixed </Td> <Td> Positive </Td> <Td> Sun </Td> <Td> Great Heat (July 24)--the day before End of Heat </Td> </Tr> <Tr> <Td> </Td> <Td> Virgo </Td> <Td> Virgin </Td> <Td> The Maiden </Td> <Td> Earth </Td> <Td> Mutable </Td> <Td> Negative </Td> <Td> Mercury </Td> <Td> End of Heat (August 23)--the day before Autumnal Equinox </Td> </Tr> <Tr> <Td> </Td> <Td> Libra </Td> <Td> Libran </Td> <Td> The Scales </Td> <Td> Air </Td> <Td> Cardinal </Td> <Td> Positive </Td> <Td> Venus </Td> <Td> Autumnal Equinox (September 23)--the day before First Frost </Td> </Tr> <Tr> <Td> </Td> <Td> Scorpio </Td> <Td> Scorpio </Td> <Td> The Scorpion </Td> <Td> Water </Td> <Td> Fixed </Td> <Td> Negative </Td> <Td> Pluto (Mars) </Td> <Td> First Frost (October 23)--the day before Light Snow </Td> </Tr> <Tr> <Td> </Td> <Td> Sagittarius </Td> <Td> Sagittarian </Td> <Td> The Archer </Td> <Td> Fire </Td> <Td> Mutable </Td> <Td> Positive </Td> <Td> Jupiter </Td> <Td> Light Snow (November 23)--the day before Winter Solstice </Td> </Tr> </Table>

The movement of earth around the sun is called answers.com