Tempel 1 (official designation: 9P/Tempel) is a periodic Jupiter-family comet discovered by Wilhelm Tempel in 1867. It completes an orbit of the Sun every
comet around perihelion in September 1682, Halley died in 1742 before he could observe its predicted return. Halley's prediction of the comet's return proved
Whipple's model. Comets with a higher dust content have been called "icy dirtballs". The term "icy dirtballs" arose after observation of Comet9P/Tempel 1 collision
of Comet Hale–Bopp. The comet was brighter than C/2011 L4 (PanSTARRS),[citation needed] but not as bright as Hale–Bopp was in 1997. After perihelion, the
its 1995 perihelion. For a larger list of periodic Jupiter-family and Halley-type comets including unnumbered bodies, see list of periodic comets. back to