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Planets
Vocabulary
Stars
How big is big?
Potpourri
100
The largest planet in our solar system
What is Jupiter
100
The part of an HR diagram where a star spends most of it's life.
What is main sequence?
100
The definition of a star
What is a large celestial body that is composed of gas and gives off light.
100
Place these in order from smallest to largest: galaxy, universe, star, planet
What is planet, star, galaxy, universe.
100
Holds the stars, gas and dust together in a galaxy.
What is gravity?
200
Earth is an example of this type of planet
What is terrestrial?
200
These empty spaces are located between galaxies.
What are voids?
200
Two stars that orbit each other
What is a binary star system?
200
The smallest celestial body when comparing a blue supergiant, a planet, a red supergiant, and a red giant.
What is a planet.
200
The rate that neutron stars are spinning.
What is hundreds of times per second.
300
The smallest of the gas giants
What is Uranus?
300
A large, cold cloud of gas and dust in interstellar space
What is a nebula?
300
The star that appears the brightest from Earth if Star A has an apparent magnitude of -0.38 and Star B has an apparent magnitude of -0.22
What is Star A.
300
The time it takes the light from a star 300 light-years from the Earth to reach the Earth.
What is 300 years.
300
A 'star' that is the size of Manhatten
What is a Neutron Star?
400
Makes up our solar system (7 items)
What are the sun, planets, moons, dwarf planets, comets, asteroids and meteroids?
400
The unit of measure used to measure stars.
What is solar radii?
400
The color of a 'failed star'.
What is brown?
400
The weight of 1 t. of a white dwarf.
What is several tons?
400
The color of Proxima Centauri
What is Red?
500
The eight planets in our solar system.
What are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune?
500
The measure of luminosity.
What is absolute magnitude?
500
The name of a star before nuclear fusion has started, but after gravity has compressed it into a sphere.
What is protostar?
500
Parts of the universe. (in a broad sense)
What is all existing energy, matter and space?
500
Gravity wins...
What is when fusion stops.