8P/Tuttle
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8P/Tuttle is a periodic comet with a 13.6-year orbit. It fits the classical definition of a Jupiter-family comet with an orbital period of less than 20 years, but does not fit the modern definition of
Tuttle's Comet and the Triangulum Galaxy photographed from Mount Laguna, California on December 30, 2007
8P/Tuttle on December 3, 2007 from Mount Laguna, California
8P/Tuttle about 1.2 degrees from M33 on December 30, 2007.
8P/Tuttle on Feb 2, 2008 from the Red Sea coast of Egypt.
A contact binary is a small Solar System body, such as a minor planet or comet, that is composed of two bodies that have gravitated toward each other until they touch, resulting in a bilobated, peanut
8P/Tuttle
…as counts were in the range of normal distribution. Radar observations of Comet Tuttle in January 2008 by the Arecibo Observatory show it to be a contact binary. The comet nucleus is estimated at 4.5 km (2.8 mi) in diameter, using the equivalent diameter of a sphere having a volume equal to the sum of a 3 km…
Comet 67P on 14 March 2015 – Nav Cam