2.3 Astronomy 3: Solar System Diagram | Quizlet

Sun

a yellow, dwarf star that is hot, fiery, and filled with gases; holds the solar system together

Earth

Only planet that is known to have human life so far; third planet from the sun; formed over 4 billion years ago; One of the terrestrial planets

Mercury

first planet from the sun; One of the terrestrial planets; smallest of the 8 planets

Venus

second planet from the sun; One of the terrestrial planets; second brightest natural object in the sky after the moon; similar size to the Earth

Mars

fourth planet from the sun; One of the terrestrial planets; often called the "red planet" for its reddish appearance

Jupiter

fifth planet from the sun; One of the terrestrial planets; made mostly out of gases, referred to as "gas giant"; also is 2.5 times more massive than all the planets in the solar system combined

Saturn

sixth planet from the sun; One of the jovian planets; Saturn's rings are more obvious in appearance but Jupiter has the most rings.

Uranus

seventh planet from the sun; One of the jovian planets; also has rings because it is considered one of the four giant planets.

Neptune

eighth planet from the sun; One of the jovian planets; also has rings because it is considered one of the four giant planets.