Great Comet of 1811 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Great Comet of 1811" in English language version.

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archive.org

Burnham, Robert & Levy, David H. (2000), Great Comets, New York: Cambridge University Press, p. 53, ISBN 0-521-64600-6.
Martineau, Harriet (2007). Linda H. Peterson (ed.). Autobiography. Broadview. p. 73. ISBN 978-1-55111-555-9.

The Comet of 44 B.C. and Caesar's Funeral Games (John T. Ramsey, A. Lewis Licht) pg 120
Bradsby (1883), Perrin, William Henry (ed.), History of Alexander, Union and Pulaski Counties, Illinois, Chicago: O.L. Baskin & Co., p. 16.

Gary W. Kronk. "The Comet Primer". Cometography.com. Retrieved 2011-04-05.
Kronk, G. W., Cometography—C/1811 F1 (Great Comet), retrieved November 26, 2008.

"JPL Small-Body Database Browser: C/1811 F1 (Great comet)". Jet Propulsion Laboratory.
Horizons output. "Barycentric Osculating Orbital Elements for C/1811 F1 (Great comet)". Retrieved 2019-05-30. (Solution using the Solar System Barycenter. Select Ephemeris Type:Elements and Center:@0)
For epoch 2200 we get PR= 1.08625E+06/365.25=2973.99 years
Donald K. Yeomans (April 2007). "Great Comets in History". Jet Propulsion Laboratory/California Institute of Technology (Solar System Dynamics).