DEFINITION OF A PLANET

“A non-luminous celestial body larger than an asteroid or comet, illuminated by light from a star, such as the sun, around which it revolves.” (www.nasa.gov)

WHAT IS A DWARF PLANET?

WHY PLUTO ISN’T ANYMORE CONSIDERED A PLANET?

WHEN THEY DISCOVERED COMETS AND ASTEROIDS BIGGER THAN PLUTO THEY DECIDED THAT PLUTO WAS TO SMALL FOR BEING A PLANET.

PLUTO DISCOVERER

In February 18,1930 a man named ClydeW.Tombaughdiscovered Pluto.(www.wikipedia.org)

He discovered Pluto using a Newtonian Telescope.

PLUTO’S SIZE

CHARON is the moon of Pluto and its half its size.

PLUTO is the second largest dwarf planet. (after Eris)

www.nasa.gov

PLUTO’S TEMPERATURE

VERY COLD

Freezing

PLUTO’S MATERIALS

ICE ROCK

METHANE GAS

NITROGEN

PLUTO SPINS ON IT’S AXIS

ONE DAY ON PLUTO = 6 EARTH DAYS.

PLUTO’S REVOLUTION AROUND THE SUN

ONE REVOLUTION AROUND THE SUN = 248 EARTH YEARS.

CHARON

CHARON IS THE BIGGEST MOON OF PLUTO.

CHARON

NIX

NIX IS A NATURAL SATELLITE OF PLUTO AND WAS DISCOVERED IN 2005.

NIX

HYDRA

HYDRA IS A NATURAL SATELLITE OF

PLUTO AND IT WAS DISCOVERED IN

2005 BY THE HUBBLE SPACE TELESCOPE.