Space Flashcards
Solar system
The sun and the family of orbiting planets,moons,and other objects
Galaxy
A lot of stars bunched together
Universe
Space and all the matter and energy in it
Satellite
An object that orbits a more massive object
Impact crater
A round pit left behind on the surface of a planet or other surface after a smaller object strikes the surface
Axis of rotation
A imaginary line about which a turning body such as earths rotation
Revolution
The moth in of one body around another such as earth and its orbit around the sun
Equinox
In an orbit q position and time in which sunlight shines equal to the northern hemisphere and the Southern Hemisphere
Solstice
A position and time in which one hemisphere gets its maximum sunlight
Mare
A large dark plain of solidified lava. The plural form is Maria
Eclipse
An event during which one object in space cast of a shadow onto another
Umbra
The dark center region of a shadow, such as the cone of the complete shadow cast of an object
Penumbra
A region of lighter shadow that may surround an umbra for example, the spreading cone of lighter shadow cast by a space object
Astronomical
The earths average distance from the sun,which is approximately 150 kilometers
Ellipse
An oval or flattened circle
Terrestrial planet
Earth or a planet similar to earth that has a rocky surface
Gas giant
A large planet that consists mostly of gases in a dense form
Asteroid
A small,solid,rocky body that orbits the sun
Orbit
The path of an object in space it moves around another object due to gravity
Waxing
Gradually increasing
Full moon
Is when the moon is at its full shape and you can see all of it
New moon
The phase of the moon when it is in conjunction with the sun and invisible from earth
Quarter moon
Is the shape of the illuminated
Tide
Tide
Tides are the rise and fall of sea levels caused by the combined effects of gravitational forces exerted by the Moon, Sun, and rotation of the earth
Comet
The body that produced a coma of gas and dust
Waxing
Gradually increasing
Full moon
Is when the moon is at its full shape and you can see all of it
New moon
The phase of the moon when it is in conjunction with the sun and invisible from earth
Quarter moon
Is the shape of the illuminated
Tide
Tide
Tides are the rise and fall of sea levels caused by the combined effects of gravitational forces exerted by the Moon, Sun, and rotation of the earth
Comet
The body that produced a coma of gas and dust
Crater
A small and faint southern constellation
