Tropical / Sidereal

Tropical chart overlay

Western astrology uses the tropical zodiac (anchored to the seasons / equinoxes). Vedic astrology uses the sidereal zodiac (anchored to the actual stars). The two systems differ by ~24° today (the ayanamsa) — meaning if you're “Aries Sun” in Western astrology, you're probably “Pisces Sun” in Vedic.

Both readings — same form

Our main reading at /reading uses the sidereal zodiac with Lahiri ayanamsa — the standard for Indian Vedic jyotish. To see your tropical Western chart, simply add 24° to each planet's longitude.

For most users this means: your Vedic Sun-sign is one sign before your Western Sun-sign. (Most of the year — at the edges of months it can shift two signs.)

Conversion table — Western Sun → Vedic Sun

Aries (Mar 21 – Apr 19)

→ Pisces

Taurus (Apr 20 – May 20)

→ Aries

Gemini (May 21 – Jun 20)

→ Taurus

Cancer (Jun 21 – Jul 22)

→ Gemini

Leo (Jul 23 – Aug 22)

→ Cancer

Virgo (Aug 23 – Sep 22)

→ Leo

Libra (Sep 23 – Oct 22)

→ Virgo

Scorpio (Oct 23 – Nov 21)

→ Libra

Sagittarius (Nov 22 – Dec 21)

→ Scorpio

Capricorn (Dec 22 – Jan 19)

→ Sagittarius

Aquarius (Jan 20 – Feb 18)

→ Capricorn

Pisces (Feb 19 – Mar 20)

→ Aquarius

This conversion only applies to your Sun sign. For the full chart (Moon, ascendant, all planets), use both Vedic (/reading) and a tropical Western tool side-by-side.

Which is “right”?

Both. They describe different things:

• Tropical describes your relationship to the seasons — psychological and seasonal archetypes.
• Sidereal describes your relationship to the actual stars — physical-cosmic and karmic patterns.
• Use both for different lenses; don't expect them to agree.