Bharani is nakshatra number 2 of the 27 lunar mansions in Vedic astrology, spanning 13.33° of the zodiac in 13°20' steps. Its planetary lord is Venus and its presiding deity is Yama.
The Moon's position in Bharani at birth shapes the Vimshottari Mahadasha sequence — a Bharani birth begins life in the Venus 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 Bharani is your janma nakshatra, and the Panchang to see exactly when the Moon transits Bharani on any date.