Tempel 1 and Gaspra ????

As I'm typing I'm looking at pictures I have of both,and they both look
like Mars moons. Mars moons are asteroids. Tempel 1 does not look like
a dirty snow ball. Its potato shaped,has dusty creators,and made of
rock. Structure wise it is hard for me to look at Tempel 1 and say its a
comet. Its nice to have close up pictures of both Deep impact probe of
Tempel 1,and Gaspra photographed by the Galileo spacecraft as it went by
in 1991. This has bothered me a lot. Can I say a rock asteroid and a
rock comet are physically the same? Bert