The closest planet to the Sun
What is Mercury?
The system with the Sun at the center.
A cloud of dust and gas in space.
What is a nebula?
The distance from the Earth to the Sun.
What is an astronomical unit?
The name of our galaxy.
What is the Milky Way?
The planet with rings
What is Saturn?
The system with the Earth at the center.
What is geocentric?
A rock that burns up in the Earth's atmosphere.
What is a meteor?
The distance light travels in a year.
What is a light year?
The name of our closest dwarf planet.
What is Ceres?
The farthest planet from the Sun.
What is Neptune?
The founder of the geocentric system.
Who is Ptolemy?
A chunk of frozen matter with a long orbit around the Sun.
What is a comet?
The height of an object above the horizon.
What is altitude?
The constellation that includes the star Polaris.
What is Ursa Minor?
The largest planet in our solar system.
What is Jupiter?
The founder of the heliocentric system.
Who is Copernicus?
Formed when a very large star explodes.
What is a black hole?
The direction of an object in the night sky.
What is azimuth?
The constellation with 3 bright stars as a belt.
What is Orion?
The only planet with one moon.
What is the Earth?
The inventor of the telescope.
Who is Galileo?
A meteor that hits the Earth.
What is a meteorite?
The highest point in the sky.
What is zenith?
The name of a former planet, now classified as a dwarf planet.
What is Pluto?