Comet Tempel-Tuttle (55P/) is a short-period comet that is the parent object of the Leonids meteor shower. It was discovered independently in 1865 by the German astronomer Wilhelm Tempel and the American astronomer Horace Tuttle (1837–1923), though past records of appearances have been traced back to 1366.

 

 

perihelion	0.982 AU
eccentricity	0.904
inclination	162.7°
period	33 years