Revati is nakshatra number 27 of the 27 lunar mansions in Vedic astrology, spanning 346.67° of the zodiac in 13°20' steps. Its planetary lord is Mercury and its presiding deity is Pushan.
The Moon's position in Revati at birth shapes the Vimshottari Mahadasha sequence — a Revati birth begins life in the Mercury mahadasha, with the balance of that period decided by how far the Moon had travelled through the nakshatra.
Use the free Kundli generator to find whether Revati is your janma nakshatra, and the Panchang to see exactly when the Moon transits Revati on any date.