Solar System planet encyclopedia

Choose a world to compare its characteristics, view photographs and explore its interior in 3D. The encyclopedia features eight planets, our star the Sun and the dwarf planet Pluto.

Our star

Sun

Center of the planetary system

1 / Rocky planet

Mercury

≈ 0.39 AU · 58 million km

2 / Rocky planet

Venus

≈ 0.72 AU · 108 million km

3 / Rocky planet

Earth

≈ 1 AU · 150 million km

4 / Rocky planet

Mars

≈ 1.52 AU · 228 million km

5 / Gas giant

Jupiter

≈ 5.20 AU · 778 million km

6 / Gas giant

Saturn

≈ 9.58 AU · 1.43 billion km

7 / Ice giant

Uranus

≈ 19.2 AU · 2.87 billion km

8 / Ice giant

Neptune

≈ 30.1 AU · 4.50 billion km

Dwarf planet

Pluto

≈ 39.5 AU · 5.91 billion km

How to compare worlds

Distances on cards and object pages are rounded mean orbital sizes, not current distances from Earth. An astronomical unit is about 150 million kilometers. A photograph's size does not represent the object's actual diameter.

Eight planets in order from the Sun: diagram and table Open the overall 3D model