20D/Westphal

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20D/Westphal was a periodic comet with an orbital period of 61.87 years. It was discovered in July 1852 by Justus Georg Westphal and shortly thereafter by Christian Heinrich Friedrich Peters. The comet was last seen in the perihelion of 1913, but it was not observed in the perihelion of 1976. It is currently considered a lost comet. The next perihelion would be scheduled for 2038.

NOTE: For you to see the comet, you need to change the time on Celestia to any time before 1913-Nov-26

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