<Table> 9P / Tempel <Tr> <Td_colspan="2"> Composite of images of nucleus obtained by the Deep Impact impactor </Td> </Tr> <Tr> <Th_colspan="2"> Discovery </Th> </Tr> <Tr> <Th> Discovered by </Th> <Td> Wilhelm Tempel </Td> </Tr> <Tr> <Th> Discovery date </Th> <Td> April 3, 1867 </Td> </Tr> <Tr> <Th_colspan="2"> Orbital characteristics </Th> </Tr> <Tr> <Th> Epoch </Th> <Td> July 31, 2016 </Td> </Tr> <Tr> <Th> Aphelion </Th> <Td> 4.748 AU </Td> </Tr> <Tr> <Th> Perihelion </Th> <Td> 1.542 AU </Td> </Tr> <Tr> <Th> Semi-major axis </Th> <Td> 3.145 AU </Td> </Tr> <Tr> <Th> Eccentricity </Th> <Td> 0.5096 </Td> </Tr> <Tr> <Th> Orbital period </Th> <Td> 5.58 years (2,038 days) </Td> </Tr> <Tr> <Th> Inclination </Th> <Td> 10.474 ° </Td> </Tr> <Tr> <Th> </Th> <Td> 7.6 km × 4.9 km (4.7 mi × 3.0 mi) </Td> </Tr> <Tr> <Th> Last perihelion </Th> <Td> August 2, 2016 </Td> </Tr> <Tr> <Th> Next perihelion </Th> <Td> March 4, 2022 </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Composite of images of nucleus obtained by the Deep Impact impactor </Td> </Tr>

Comet tempel 1 distance from sun at perihelion