Christian Horrebow
Christian Pedersen Horrebow (15 April 1718 – 15 September 1776)[1] was a Danish astronomer of the 18th century. He was a son of Peder Horrebow, whom he succeeded as director of the observatory associated with the University of Copenhagen. He was himself succeeded by Thomas Bugge.
Neith, a supposed moon of Venus, was spotted by Christian Horrebow, while he was studying this planet from 1766 to 1768. He also discovered the periodicity of sunspots.[2][3]
References
[edit]- ^ Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.
- ^ Jørgensen, Carsten Sønderskov; Karoff, Christoffer; Senthamizh Pavai, V.; Arlt, Rainer (2019-06-12). "Christian Horrebow's Sunspot Observations – I. Life and Published Writings". Solar Physics. 294 (6): 77. arXiv:1906.10884. Bibcode:2019SoPh..294...77J. doi:10.1007/s11207-019-1465-z. S2CID 255075791. Retrieved 2022-06-17.
- ^ Karoff, Christoffer; Jørgensen, Carsten Sønderskov; Senthamizh Pavai, V.; Arlt, Rainer (2019-06-12). "Christian Horrebow's Sunspot Observations – II. Construction of a Record of Sunspot Positions". Solar Physics. 294 (6): 77. arXiv:1906.10895. Bibcode:2019SoPh..294...78K. doi:10.1007/s11207-019-1466-y. S2CID 255070410. Retrieved 2022-06-17.
Sources
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