the gravitationally bound system comprising the Sun and the objects that orbit it
the star at the center of the Solar System and is by far the most important source of energy for life on Earth
a luminous sphere of plasma held together by its own gravity
Earth's only natural satellite
minor planets, especially those of the inner Solar System
an icy small Solar System body
a small rocky or metallic body travelling through space
all of time and space and its contents
planet closest to the sun
second planet from the sun
third planet from the sun, the planet we live on
forth planet from the sun
fifth planet from the sun
sixth planet from the sun
seventh planet from the sun
eighth planet from the sun
a straight-line configuration of three celestial bodies in a gravitational system
the shape of the illuminated portion of the Moon as seen by an observer on Earth
when the Moon passes between the Sun and Earth
when the Moon passes directly behind the Earth into its umbra
the angle between an object's rotational axis and its orbital axis
bright or shining, especially in the dark
have a progressively smaller part of its visible surface illuminated
have a progressively larger part of its visible surface illuminated
a curve on a plane that surrounds two focal points
the envelope of gases surrounding the earth or another planet.
a large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune.
the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
a planet whose orbit lies within the asteroid belt, i.e., Mercury, Venus, Earth, or Mars.
the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.
a planet whose orbit lies outside the asteroid belt, i.e., Jupiter, Saturn, Uranus, or Neptune.
a celestial body moving in an elliptical orbit around a star.
planet is a planet that is composed primarily of silicate rocks or metals.
the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.
the time taken by a planet to make one revolution around the sun.
is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.
The Great Red Spot is a giant, spinning storm in Jupiter's atmosphere.
a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun
noun: meteor; plural noun: meteors a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light
a small rocky body orbiting the sun.
a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such.