StarChild: The Dwarf Planet Pluto

Pluto: The First Dwarf Planet. Pluto is actually smaller than one of Neptune's moons, Triton. ... While it is closer to the Sun, Pluto has an atmosphere. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto.html - 7k

Is Pluto or Neptune farthest from the Sun?

StarChild Question of the Month for January 1999. Question: Is Pluto or Neptune farthest from the Sun? Answer: Pluto is usually farthest from the Sun. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question5.html - 5k

StarChild: Facts about Pluto

Facts about Pluto. Average Solar Distance, 6 billion km. Revolution Period, 248 Earth years. Rotation Period, 6.4 Earth days. Equatorial diameter, 2400 km. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto_facts.html - 4k

StarChild: Pluto's Moons

Pluto's Moons. From 1975 until 2005, astronomers knew of only one moon for Pluto. However, in mid-2005, using the cameras on the ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto_moons.html - 4k

StarChild: Pluto's Natural Satellites

Pluto's Natural Satellites. Pluto has three named moons. Name, Diameter, Distance from Pluto. Charon, 1,186 km, 19,636 km. Nix, 60-165 km, unknown km. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto_satellites.html - 4k

StarChild: Did you know... (Pluto)

Did you know...? The Earth gets more light from a full moon than Pluto does from the Sun. Return to StarChild homepage, Return to ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto_know.html - 4k

StarChild: Answer to the Pluto Question

And the answer is... Pluto's three moons are called Charon, Nix, and Hydra.. Return to StarChild homepage, Return to the StarChild ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto_answer.html - 4k

Have they found a new planet in our solar system?

This object has a diameter of about 1300 km, roughly half the size of Pluto. ... They said that Pluto would retain its classification as our ninth planet. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question50.html - 6k

StarChild: Eris

Eris is the largest known dwarf planet in our solar system. It is a little larger than Pluto. ... They also decided that Pluto should no longer be called a planet. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/eris.html - 7k

StarChild: Multidisciplinary Solar System Activities: Where does ...

Each of the eight planets and the dwarf planet Pluto orbits around the Sun in a very special way and in a very special place. ... Mercury, Neptune, Pluto. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/javascript/planet_go.html - 7k

Clyde Tombaugh

Read It Listen, Clyde Tombaugh. Clyde Tombaugh was only twenty-four years old when he discovered Pluto! ... He named the object Pluto. ... http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level1/tombaugh.html - 7k

StarChild: Makemake

Like its fellow dwarf planets Pluto and Haumea, Makemake is located in the Kuiper Belt. ... Makemake and Pluto are two of the brightest objects in the Kuiper Belt. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/makemake.html - 7k

StarChild: Answer to the Eris Question

And the answer is... You will reach Pluto first. Eris is the ... Solar System. You will reach Eris long after you pass Pluto. Return ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/eris_answer.html - 4k

When were each of the planets first discovered and who did it?

Pluto was discovered by astronomer Clyde Tombaugh in 1930. A 9th planet had been looked for for some time. ... As a result, he discovered Pluto. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question16.html - 7k

How do planets and their moons get their names?

This tradition was continued when Uranus, Neptune, and Pluto were discovered in more modern times. ... Pluto is the Roman god of the underworld in Roman mythology. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question48.html - 8k

StarChild: Multidisciplinary Solar System Activities: Planet Hop

Neptune, 1.2, 164.79 Earth years, Pluto, 0.04, 248 Earth years, EXTRA CREDIT. The gravitational pull of the Sun is 28 times greater than that of Earth. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/activity/planet_hop.html - 9k

StarChild: Multidisciplinary Solar System Activities: Where does ...

Mars, Planet number: 4. Mercury, Planet number: 1. Neptune, Planet number: 8. Pluto, Planet number: 9. Saturn, Planet number: 6. Uranus, Planet number: 7. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/planet_go_solution.html - 5k

Radar

This method has been used in one form or another to determine the distances to all of the planets in our solar system (except Pluto, which we have not visited ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/radar.html - 5k

Solar System Shuffle Solution

The Correct Card, The Clue. A. This ice planet has a moon which is almost as big as it. Solar System Object: Pluto Matching Card Number: 6. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/shuffle_solution.html - 7k

What is a light-year and how is it used??

It is approximately 150 million km (93 million miles). Mercury can be said to be about 1/3 of an AU from the Sun and Pluto averages about 40 AU from the Sun. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html - 7k

Where do comets come from?

Danish astronomer Jan Oort proposed that comets reside in a huge cloud at the outer reaches of the solar system, far beyond the orbit of Pluto. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question40.html - 6k

StarChild: Space Probes

It will be only the second probe sent to that small, rocky planet. The New Horizons spacecraft was launched in 2006, and will arrive at Pluto in 2015. ... http://starchild.gsfc.nasa.gov/docs/StarChild/space_level1/probes.html - 9k

StarChild: Haumea

It takes 285 Earth years for Haumea to make one trip around the Sun. This dwarf planet has a mass less than half that of Pluto. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/haumea.html - 7k

Archive of Questions

[November 1998]. Is there a Planet X or 10th planet? [December 1998]. Is Pluto or Neptune the farthest from the Sun? [January 1999]. What is an eclipse? ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/archive.html - 14k

StarChild: The Solar System

objects far, far from the Sun which they call dwarf planets. Pluto, which was once called a planet, is now called a dwarf planet. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/solar_system.html - 7k