What Is My Sidereal Sign? Sidereal Zodiac Dates by Birthday

Your sun sign in sidereal astrology is probably different from what you have always been told. Because the sidereal zodiac is aligned to the actual constellations (not the seasons), the date ranges for each sign shift by about 24 days compared to tropical astrology.

Here is the complete sidereal sun sign table so you can look up your real sign.

Find your sign in 5 seconds: enter your birthday in the What's My Real Sign? calculator and skip the table. For your complete sidereal chart with all placements, use the sidereal birth chart calculator.

Sidereal Sun Sign Dates (Lahiri Ayanamsa, 2026)#

Sidereal Sign	Date Range	Tropical Equivalent
Aries	April 14 - May 14	Taurus (mostly)
Taurus	May 15 - June 14	Gemini (mostly)
Gemini	June 15 - July 15	Cancer (mostly)
Cancer	July 16 - August 16	Leo (mostly)
Leo	August 17 - September 16	Virgo (mostly)
Virgo	September 17 - October 16	Libra (mostly)
Libra	October 17 - November 15	Scorpio (mostly)
Scorpio	November 16 - December 15	Sagittarius (mostly)
Sagittarius	December 16 - January 13	Capricorn (mostly)
Capricorn	January 14 - February 12	Aquarius (mostly)
Aquarius	February 13 - March 13	Pisces (mostly)
Pisces	March 14 - April 13	Aries (mostly)

These dates can vary by a day depending on the year. For exact calculations, use a birth chart calculator with your specific birth date and time.

Did Your Sign Change?#

For roughly 75% of people, the sidereal sun sign is one sign back from the tropical sign. If you were born in the first three weeks of your tropical sign, your sidereal sign is almost certainly different.

Only if you were born in the last week of your tropical sign's date range does your sign stay the same in both systems.

Examples#

• Born March 25: Tropical Aries, Sidereal Pisces
• Born April 18: Tropical Aries, Sidereal Aries (stays the same)
• Born July 4: Tropical Cancer, Sidereal Gemini
• Born December 20: Tropical Sagittarius, Sidereal Sagittarius (stays the same)
• Born January 5: Tropical Capricorn, Sidereal Sagittarius

What It Means If Your Sign Changed#

Having different tropical and sidereal sun signs is normal. Here is how to think about it:

Your tropical sign reflects your relationship with the seasonal cycle and your conscious personality - the self you identify with and project outward.

Your sidereal sign reflects your position in the cosmic star field and may describe a deeper, more instinctive layer of your identity - the qualities that emerge under pressure or in intimate settings.

Quick Guide to Each Shift#

Tropical Aries to Sidereal Pisces: Your bold, action-oriented surface has a deeply intuitive, empathetic core. You charge forward, but your motivation often comes from compassion.

Tropical Taurus to Sidereal Aries: Your steady, grounded exterior hides a fierce, pioneering spirit. You value stability but need regular doses of excitement.

Tropical Gemini to Sidereal Taurus: Your quick, communicative nature is rooted in a deep desire for security and sensory experience. Words are your tool, but touch is your language.

Tropical Cancer to Sidereal Gemini: Your nurturing, emotional exterior runs on a curious, mentally active engine. You care deeply but process feelings through thinking.

Tropical Leo to Sidereal Cancer: Your confident, expressive persona protects a deeply sensitive emotional core. Your creativity is fueled by feeling.

Tropical Virgo to Sidereal Leo: Behind your analytical, service-oriented approach is a creative heart that wants recognition. You perfect things because you are proud of them.

Tropical Libra to Sidereal Virgo: Your diplomatic, partnership-focused nature is driven by a need to improve and refine. You seek harmony because imperfection bothers you deeply.

Tropical Scorpio to Sidereal Libra: Your intense, penetrating exterior is motivated by a deep need for balance and justice. You dig deep because you want fairness.

Tropical Sagittarius to Sidereal Scorpio: Your adventurous, philosophical surface runs on intense emotional fuel. You seek truth because you have felt the cost of lies.

Tropical Capricorn to Sidereal Sagittarius: Your disciplined, ambitious approach is driven by a genuine love of knowledge and meaning. You climb because you believe in something bigger.

Tropical Aquarius to Sidereal Capricorn: Your unconventional, forward-thinking persona is built on a surprisingly traditional foundation. You innovate from a place of structure.

Tropical Pisces to Sidereal Aquarius: Your dreamy, intuitive nature has a rational, humanitarian backbone. Your empathy is not just feeling - it is a philosophy.

Beyond the Sun Sign#

Remember that your sun sign is just one piece of your chart. Your Moon, Rising, Mercury, Venus, and Mars signs all shift in sidereal too. The full picture of how your tropical and sidereal charts differ is much richer than the sun sign alone — and most people are surprised by how much further the changes go once they run their full sidereal birth chart.

To see all your placements in both systems, calculate your full birth chart. It is free and includes AI-powered interpretations. For a quick lookup of your sun sign shift, use the What's My Real Sign? tool.

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Not sure about your sign? Try the What is My Real Sign? quick tool - just enter your birthday.

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For your exact sidereal chart (not just sun sign), use the sidereal birth chart calculator.