The earliest record of Halley's comet is

Spring and Autumn Annals. The earliest record of Halley's comet is the Spring and Autumn Annals, which records that "a satellite entered the Beidou" in 6 13 BC, which is recognized as the first exact record of Halley's comet in the world, more than 600 years earlier than Europe. Spring and Autumn Annals is a literary work in ancient China. Later, there appeared many works that supplemented, explained and expounded the history recorded in Spring and Autumn Annals, which were called biographies. Representative works include Zuo Zhuan, Ram Zhuan and Gu Liangzhuan, which are collectively called Three Biographies of the Spring and Autumn Period.