Cometa Halleyanus
Cometa Halleyanus, designatione astronomica 1P/Halley, est notissimus cometes periodicus, qui post intervalla 75 sive 76 annorum paret. Observabatur ab astronomis utique ab anno 240 a.C.n., atque ex Edmundo Halley, astronomo Anglico, qui primum orbitam et periodum cometae computavit, appellatur.

Notae

Bibliographia
Gore, Rick. 1986. Halley's Comet '86. National Geographic, 170(6):758–785. ISSN 0027-9358. OCLC643483454.
Lancaster-Brown, P. 1985. Halley & His Comet. Blandford Press. ISBN 0713714476.
Sagan, Carl, et A. Druyan. 1985. Comet. Novi Eboraci: Random House. ISBN 0394549082.
Needham, Joseph. 1959. Comets, meteors, and meteorites. In Science and Civilisation in China, 430–433. Mathematics and the Sciences of the Heavens and the Earth, 3. Cantabrigiae: Cambridge University Press. ISBN 9780521058018

Nexus externi 

Cometae