Space Vocab Flashcards
The Sun and its family of orbiting plan items moons and other objects
Solar system
Millions or billions of stars held together in a group by there own gravity
Galaxy
Space and all the matter and energy in it
Universe
An object that orbits a more massive object
Satellite
A round pit left behind on the surface of a planet or other body in space after a smaller object strikes the surface
Impact creator
An imaginary line about which a turning body such as earth rotations
Axis of rotation
The motion of one body around another such as earth in its orbit around the sun
Revolution
One part of a pattern of temperature changes weather trends over the course of a year
Season
In an orbit a position and time in witch sunlight shines equally on the northern hemisphere and the Southern Hemispheres
Equinox
In a orbit a position and time during which one hemisphere gets maximum sunlight while the other hemisphere gets minimum amount
Solstice
A large dark plain of solidified lava
Mare
An event during which one object in space casts a shadow onto another
Eclipse
The dark central region of shadow such as the cone of complete shadow cast by an object
Umbra
A region of lighter shadow that may surround an umbra for example the spreading cone of lighter shadow cast bya space object
Penumbra
Earthed Average distance from the sun which is approximately 150 million de kilometers
Astronomical unit ai
