BIBLIOGRAPHY

Short-period comet, first observed 240BC.

Named for astronomer Edmund Halley, who in 1705 determined the comet's periodicity.

Edwin Emerson. Comet Lore: Halley's Comet in History and Astronomy. Schilling Press. 1910. 144pp.

Ruth S. Freitag. Halley's Comet: A Bibliography. Library of Congress. 1984. 555pp.

Mark Littmann; Donald K. Yeomans. Comet Halley: Once in a Lifetime. American Chemical Society. 1985. 175pp.

Jerred Metz. Halley's Comet, 1910: Fire in the Sky. Singing Bone Press. 1985. 124pp.

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