Sidereal Sun Sign Dates
Sidereal Aquarius Dates
February 12 to March 13
Lahiri (IAE 1985) ayanamsa · approximate dates for 2020 to 2050 · shifts ~1 day per 72 years
In the Lahiri sidereal zodiac, the Sun enters Aquarius on approximately February 12 and leaves on approximately March 13. This corresponds to most of what tropical astrology calls Pisces. If you were born between roughly February 12 and March 13, your sidereal Sun sign is Aquarius.
Why does sidereal Aquarius start on February 12?
Popular culture's 'Age of Aquarius' refers to the precessional era when the March equinox moves into the constellation Aquarius. In the equal-sign Lahiri system, the equinox currently falls at roughly 6° sidereal Pisces, meaning the Age of Aquarius has not yet begun by most calculations (estimates range from 150 to 400 years in the future, depending on the reference system). Sidereal Aquarius dates overlap with the late-winter period that tropical astrology calls Pisces, so people with sidereal Aquarius often find they had been identifying with tropical Piscean themes before encountering their sidereal placement. The ingress shifts about one day every 72 years.
What if you were born on the cusp?
People born in the last week of tropical Aquarius (roughly February 12 to February 18) are in the cusp zone. Your tropical Sun is Aquarius but your sidereal Sun may also be Aquarius depending on the year and exact solar ingress time. Calculate your sidereal chart for a definitive answer.
Get your complete sidereal chart
The Sun sign dates above are approximate. Your full chart includes Moon, rising, and all planets in the Lahiri sidereal zodiac, plus the exact ayanamsa applied to your birth date.