Simple Answer: Because it is extremely far away from the sun, and is small so it has less gravitational pull.
Long answer:
Because Pluto orbits much further from the Sun than Earth, it takes much longer to orbit the Sun. In fact, Pluto takes 248 years to orbit the Sun. That's because Pluto orbits at an average distance of 5.9 billion km from the Sun, while Earth only orbits at 150 million km. In fact, it takes so long for Pluto to orbit that Sun, that the dwarf planet hasn't even completed a third of an orbit from when it was discovered back in February 18th, 1930.
Pluto has a highly elliptical orbit. Its distance from the Sun varies from 4.4 billion km to 7.4 billion km. And during this orbital period, Pluto goes through a few interesting changes. You might be surprised to learn that Pluto has an atmosphere. When it's at its closest point to the Sun, Pluto's atmosphere evaporates from the surface and surrounding the dwarf planet. And then when it gets further away, the atmosphere freezes again, coating the surface in a thin layer.
Pluto was only discovered in 1930 by Clyde W. Tombaugh. Because it takes 248 years to orbit the Sun, Pluto won't have completed a full orbit until the year 2178.
All planets revolve around the Sun.
All planets (although Pluto is not considered an official planet) revolve around the sun, so it is impossible for a planet to revolve around another planet.
Yes. It revolves around the sun and has a long period of revolution.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto- though Pluto is no longer classed as a planet. In addition, between Mars and Jupiter is the asteroid belt and they also revolve (orbit the sun). Comets have a cigar shaped orbit but also revolve around the sun. There are many of them.
Eight, as Pluto and Ceres are now classified as dwarf planets. The other eight planets are (in order of distance from the Sun):MercuryVenusEarthMarsJupiterSaturnUranusNeptune
Neptune, Pluto has lost its status as a planet. Since then, many dwarf planets have been discovered beyond Pluto.
which planet takes the longest time to revolve around the sun
All planets revolve around the Sun. There are no binary planet systems in our Solar System. The dwarf planets Pluto and Charon are possible candidates for a binary system because of the barycentre. The other alternative would be Pluto and Neptune because of Pluto's chaotic orbit.
The Planets in our Solar System (if I am reading your question correctly)Order of Planets in our Solar System (from closest to the Sun, out):MercuryVenusEarthMarsSaturnJupiterNeptuneUranus*(NOT PLUTO ANY Longer, since it was DEMOTED to a PLANETOID)
pluto
Yes, all 8 planets along with planetesimals like Pluto revolve around and axis.
Yes because Pluto is no longer in our solar system and the planets after Pluto are not in our solar system