Encke's comet Comparison Table

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Encke's comet comparison table

Subject has definition is a kind of is an instance of

comet A diffuse body of gas and solid particles (such as CN, C₂, NH₃, and OH), which orbits the Sun. The orbit is usually highly elliptical or even parabolic (average perihelion distance less than 1 AU; average aphelion distance, roughly 10⁴ AU). Comets are unstable bodies with masses on the order of 10¹⁸ g whose average lifetime is about 100 perihelion passages. Periodic comets comprise only about 4% of all known comets. Comets are obviously related in some manner to meteors, but no meteorites from a comet have ever been recovered. Observations of comets Bennett and Kohoutek have established that a comet is surrounded by a vast hydrogen halo. celestial body

Encke's comet The comet with the shortest known period (3.30 years) (a = 2.21 AU, e = 0.847, i = 12^°.4). It has been observed at every apparition since its discovery in 1819. Its period is gradually decreasing. Named after J. F. Encke, who computed its orbit. (It was discovered by Pons.) comet

Subject	has definition	is a kind of	is an instance of
comet	A diffuse body of gas and solid particles (such as CN, C₂, NH₃, and OH), which orbits the Sun. The orbit is usually highly elliptical or even parabolic (average perihelion distance less than 1 AU; average aphelion distance, roughly 10⁴ AU). Comets are unstable bodies with masses on the order of 10¹⁸ g whose average lifetime is about 100 perihelion passages. Periodic comets comprise only about 4% of all known comets. Comets are obviously related in some manner to meteors, but no meteorites from a comet have ever been recovered. Observations of comets Bennett and Kohoutek have established that a comet is surrounded by a vast hydrogen halo.	celestial body
Encke's comet	The comet with the shortest known period (3.30 years) (a = 2.21 AU, e = 0.847, i = 12^°.4). It has been observed at every apparition since its discovery in 1819. Its period is gradually decreasing. Named after J. F. Encke, who computed its orbit. (It was discovered by Pons.)		comet

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