And Chinese astronomers who
recorded an new bright star
in the sky in 1054 AD:
".. In the 1st year of the period Chih-ho, the 5th moon, the day chi-ch'ou, a guest star appeared approximately several inches south-east of Tien-Kuan [Zeta Tauri]. After more than a year, it gradually became invisible ...."
(translated by J.J. Duyvendak 1942)
It is since been determined that this new
bright star was the supernova explosion
that formed the Crab Nebula: