Yes,it is.
in the universe
The nucleus is the solid part of a comet.
The Universe - 2007 Ride the Comet 6-13 was released on: USA: 10 June 2012
He-Man and the Masters of the Universe - 1983 The Cosmic Comet 1-1 is rated/received certificates of: Australia:G
He-Man and the Masters of the Universe - 1983 Capture the Comet Keeper 2-61 is rated/received certificates of: Australia:G
Yes. Halley's Comet is a comet that orbits our sun, and the definition of "Part of the solar system" is 'Any object that orbits our sun.'
tail
The head of the comet
Obviously, the Universe is the biggest of that lot. Next biggest is "galaxy", then solar system, then star, then moon. A comet is usually bigger than a meteorite, but not always.
Planet Pluto is in solar system and Solar system is in the Universe t, hence Pluto is also in our universe.However Pluto was not part of original Solar sytem but was a comet which was captured in a planetary orbit.
sozin's comet part 3: into the inferno sozin's comet part 4: AVATAR AANG
He-Man and the Masters of the Universe - 1983 Capture the Comet Keeper 2-61 was released on: USA: 15 November 1985 UK: 12 February 1988