No planet has a "tail".
I believe you are thinking of a comet.
The planet Mercury has no 'tail'.
The planet mercury orbits closest to the sun.
The dwarf planet Pluto. No "planet" takes that time.
None of the planets in our solar system has a 'tail'.
Venus is a planet, not a comet, so it does not have a tail.
A comet.
Planet Earth
comet
Of the 8 official planets Neptune has the biggest orbit so it travels the furthest.
There are no planets that travel around the moon. The moon travels around Earth.
mercury. I think you mean "Orbit".
the heat from a star or planet