Scroll up for the 2009 Free Version of the Star Ephemeris.
Click here to view the Pro Ephemeris and to try the 2007 & 2008 Beta Version with control buttons, you can also download and test it on your computer before you buy the Lite, Pro or Star Ephemeris.
To covert your sun sign or another planet from the Tropical to the Sidereal Zodiac, simply subtract 24.9 degrees. For example, if you are a Gemini of 5 degrees, your sidereal sign is 10.1 degrees Taurus, the same information is graphically displayed above in the Star Ephemeris.
To calculate the degree of your sign, Click here
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About
the Star Graphic Astrology Ephemeris
The Star Ephemeris displays the twelve zodiac constellations as they actually appear in relationship to the sidereal and tropical astrology systems. It is also an astronomical reference guide to the yearly movement of the planets against the background of stars, portraying accurate longitude and latitude positions along the ecliptic.
The positions of the Astrological Signs of Zodiac compared to the actual constellations has changed over the centuries due to the earth's wobble. This wobble, called the precession of the equinoxes, has in effect created two zodiacs, the Tropical and the Sidereal. Some eighteen hundred years ago, around 200 C.E., the two zodiacs aligned, looking very much like the Pro Ephemeris. Since that time, the constellations have "rotated" nearly 24.9 degrees, about one degree every 72 years.
The Star Ephemeris above portrays the reality of our modern night sky. The constellation sizes and the spacing of stars along the ecliptic are accurately projected onto the 360 degree polar grid. The Tropical system is symbolized by the inner ring of glyphs, while the fainter outer ring of glyphs - appearing skewed at about 25 degrees from the inner ring - represents the Sidereal system.
The constellations' stars correspond to the glyphs of the outer Sidereal ring, even though they overlap the inner Tropical ring. The revolving planets' longitudes are relative to both systems, while the planets' latitudes correspond only to the star constellations.
So, why are there two zodiacs? Tropical (western) astrology is based on the seasons, while Sidereal (eastern) astrology is based on the stars. The Tropical Astrology Ring has rotated in relationship to the constellations to allow the beginning of Aries to line up with the first day of spring. This is called the First Point of Aries, a term still used by current day astronomers. That Tropical astrology intentionally compensates for the precession of the equinoxes, is a fact often overlooked by skeptics.
Tropical astrology's philosophy is that human personality traits are influenced by the seasons rather than the stars. For example, an Aries, born in spring, is subject to the warming weather and the positive "after a long winter" effect this has on people's behavior (who are around the new baby). So, just as people's personalities are affected by cultural and geographical influences, like developing an accent or inheriting physiological traits, Tropical astrology indicates that seasonal influences play a role too. over ->
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about the ephemeris, continued...
The term "native" is used by astrologers to refer to a person's sun sign in the same context that it is used to describe someone born in a large metropolis or small town. Most people would agree that where you are born, will influence your personality to a degree. Tropical astrology's philosophy is that when you are born is a contributing factor too. Over a hundred years ago, Albert Einstein showed that space (where) and time (when) are two sides of the same coin.
Tropical astrology, however, does not assign unique characteristics to natives born south of the equator, that is, those individuals developing different personas due to the reversed seasons. This point is often used by sidereal astrologers claiming the correctness of that system.
The star ephemeris displays the longitude and latitude of the planets in relationship to the ecliptic which runs through the constellations of the zodiac. While the sun follows the ecliptic nearly exactly (the dotted blue circle) the planets and moon wander north and south of this line. The moon and Pluto have the greatest variations. As the moon circles the chart, it intersects the ecliptic twice a month at the moon's nodes. Pluto is currently well above the ecliptic and will not intersect it until 2018.
The stars in the zodiac constellations, represented by the six pointed symbols, are of uniformed brightness and so do not show the stars' actual magnitude. However, the star symbols for Antares in Scorpio, Aldebaran in Taurus, Spica in Virgo and Regulus in Leo are larger because these stars are of brighter magnitude and serve as good guides for locating the wandering planets in the night sky when using the Star Ephemeris as an astronomy tool.
As with the Pro Ephemeris, the text display of numbers, below the moon phase, are given in Tropical longitude degrees.
The zodiac in the Star Ephemeris is always visible because both longitude and latitude for each planet is shown in relation to the stars. The zodiac in the Pro & Lite Ephemeris can be made invisible because the planets' orbits can be still be easily followed, since only their longitude is displayed.
The Star and Pro Ephemeris are sold together for $4.29, while the Pro Ephemeris is sold separately for $3.19. The Lite version is $2.09. Click Buy Star Version on the Star Ephemeris above for purchase options.
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