How does a comet deform?

Hally's comet does have a similar comet to it im not sure what its called all i know is instead of coming around every few hundred of years it comes around every few thousand sooo lets just say im...

No. Comet brightness depends on the actual brightness, but also on the distance from the Sun. In 1986, Halley's Comet was not very bright, because it was far from Earth. The previous appearance in...

Halley's Comet or Comet Halley (officially designated 1P/Halley) is the best-known of the periodic comets

yes

in an elliptical (oval) orbit around the sun, with its tail pointing in the oposite direction of the sun.