20D/Westphal was a periodic comet with an orbital period of 61 years. It fits the classical definition of a Halley-type comet (20 years < period < 200 years). The comet appeared to disintegrate during the 1913 apparition and has not been observed since then.
20D/Westphal was a periodic comet with an orbital period of 61 years. It fits the classical definition of a Halley-type comet (20 years < period < 200 years). The comet appeared to disintegrate during the 1913 apparition and has not been observed since then.
The comet was originally discovered by the German astronomer J. G. Westphal (Göttingen, Germany) on July 24, 1852. It was independently discovered by the American astronomer Christian Heinrich Friedrich Peters (Constantinople) on August 9. The comet exhibited many flunctuations in intristic brightness and reached an apparent magnitude of around 4 while a dust tail was also observed. It was last observed about 120 days after perihelion.
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