It is heralded by a shout, by a thunderclap, or by the blast of a trumpet.
Njegov katalog je leta 1665 v Oxfordu izdal Hyde z naslovom "Tabulae longitudinis et latitudinis stellarum fixarum ex observatione Ulugbeighi", leta 1767 G. Sharpe in leta 1843 Baily v zvezku xiii Memoirs of the Royal Astronomical Society.