What Are Zodiac Signs in Astrology and Why Are They Important?

Vedic astrology is built upon zodiac signs, planets, nakshatras and houses. Among these, zodiac signs form the foundation. A horoscope begins with the birth sign and the positions of planets in it. Without zodiac signs, astrology cannot exist. Let us understand what zodiac signs are, how they are calculated and why they hold such importance in astrology.

Why are there exactly 12 zodiac signs?

The sky around Earth appears as a 360-degree zodiac belt (bhachakra).

• This circle is divided into 12 equal parts of 30 degrees each.
• Each 30-degree segment is called a zodiac sign.
• Thus, there are 12 zodiac signs in total.
• Along with these, the zodiac also contains 27 nakshatras.

This is not only a mathematical division but also the base of spiritual interpretations of human life.

The Essence of Jyotish Shastra: Ancient Wisdom for Modern Life

Names and symbols of 12 zodiac signs

Order	Zodiac Sign	Symbol
1	Aries (Mesha)	Ram
2	Taurus (Vrishabha)	Bull
3	Gemini (Mithuna)	Twins
4	Cancer (Karka)	Crab
5	Leo (Simha)	Lion
6	Virgo (Kanya)	Maiden
7	Libra (Tula)	Scales
8	Scorpio (Vrischika)	Scorpion
9	Sagittarius (Dhanu)	Archer
10	Capricorn (Makara)	Sea goat
11	Aquarius (Kumbha)	Water pot
12	Pisces (Meena)	Fish

This sequence never changes and is used in horoscope calculations.

Which planets rule the zodiac signs?

Zodiac Sign	Ruling Planet
Aries	Mars
Taurus	Venus
Gemini	Mercury
Cancer	Moon
Leo	Sun
Virgo	Mercury
Libra	Venus
Scorpio	Mars
Sagittarius	Jupiter
Capricorn	Saturn
Aquarius	Saturn
Pisces	Jupiter

Rahu and Ketu are shadow planets and therefore do not rule any zodiac sign.

Why are zodiac signs important in astrology?

• Birth Sign: The sign in which the Moon is placed at birth is called the birth sign.
• Personality: A person’s character and qualities are defined by the zodiac sign and its ruling planet.
• Planetary impact: The effects of planets are shaped by the sign they occupy.
• Accurate prediction: Zodiac signs are the base for interpreting past, present and future events.

Frequently Asked Questions (FAQs)

Why are there only 12 zodiac signs?

Because the zodiac belt is 360 degrees and dividing it into 30 degrees gives 12 equal parts.

Do all zodiac signs have ruling planets?

Yes. The Sun and Moon each rule one sign, while Mars, Mercury, Jupiter, Venus and Saturn rule two each.

What is the difference between zodiac signs and nakshatras?

A zodiac sign covers 30 degrees, while a nakshatra spans 13 degrees and 20 minutes.

How is the birth sign determined?

The sign in which the Moon is placed at birth is the native’s birth sign.

Why are zodiac signs important in astrology?

Because they form the base of horoscope analysis and life predictions.