Varāhamihira
6th century CE · Ujjain · Jyotiṣa (historical)
Varāhamihira was a historical astronomer and astrologer who lived in the 6th century CE in the region of Ujjain (Avanti), the meridian of Indian astronomy. His Pañcasiddhāntikā summarises five earlier astronomical systems, including Greek-influenced ones; his Bṛhat Saṃhitā is an encyclopaedia covering planets, omens, weather, architecture, gems and much more; and his Bṛhat Jātaka is still a standard textbook of horoscopy.
Later legend places him among the “nine gems” of King Vikramāditya’s court; historians treat this as tradition rather than record.
6th century CE · Ujjain · Bṛhat Saṃhitā · Bṛhat Jātaka · Pañcasiddhāntikā