In Western astrology each sign of The Zodiac has a planetary ruler, which starts with Aries which is ruled by Mars and finishes with Pisces which is ruled by Neptune.
The above table shows the glyphs (symbols used by astrologers for signs, planets and asteroids) for the twelve signs of the Zodiac and their planetary rulers:_
Aries ruled by Mars
Taurus ruled by Venus
Gemini ruled by Mercury
Cancer ruled by Moon
Leo ruled by Sun
Virgo ruled by Mercury
Libra ruled by Venus
Scorpio ruled by Pluto
Sagittarius ruled by Jupiter
Capricorn ruled by Saturn
Aquarius ruled by Uranus
Pisces ruled by Neptune
Before Pluto, Uranus and Neptune were discovered each of the planets with the exception of the luminaries (Sun and Moon) governed two signs each.
So, in what is termed Horary Astrology and Traditional Astrology:
Mars governed both Aries and Scorpio –the latter now ruled by Pluto.
Saturn governed both Capricorn and Aquarius-the latter now ruled by Uranus.
Jupiter governed both Sagittarius and Pisces-the latter now ruled by Pisces.
So in what is today termed Modern Astrology, we can see that both Mercury and Venus still govern two signs each:
Mercury: Gemini and Virgo
Venus: Taurus and Libra.
So now you know …if you didn’t already !