Tropical astrology

Tropical Astrology is the old astrological division of the sky. When the Zodiac was invented, the position of the constellations were written down. But since then, the whole Zodiac has shifted almost a whole sign due to the Precession, so whoever was once born a Virgo, is now probably born a Leo - with the personality changes that come with it. Tropical Astrology ignores this, and keeps using the old tables - which have nothing to do with where the planets actually are in the sky.

Zodiac compatibility

So is there anything to zodiac compatibility. Does your astrological sign really have anything to do with who your ideal mate is. Or who can be the best friend for you. Is there a reason why some siblings are rivals for life, while others are as close as twins.