20D/Westphal

Japanese version
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Updated on February 21, 2004

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* Returns and Appearances

!Discovered *Appeared -Not observed #Appeared before discovery +Not observed before discovery .Returns in the future
.
2038 May 4
-
1976 Jan. 3
* 20D/1913 S1
1913 Nov. 26
! 20D/1852 O1
1852 Oct. 13

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The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996.
The perihelion date in 1976 is calculated using the Minor Planet & Comet Ephemeris Service.

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.