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6th Chapter 12 Vocab

QuestionAnswer
the measure of a celestial body's brightness as observed from the earth apparent magnitude
the actual brightness of a celestial object absolute magnitude
the amount of light radiated per second by a star luminosity
a diagonal area on the Herzsprung-Russel Diagram in which most stars are found main sequence
a small, very hot, very dense star white dwarf
a large cloud of gas and dust in space nebula
the explosion of a massive star that causes a sudden increase in luminosity supernova
the small, dense core of a supergiant after an explosion neutron star
a rapidly spinning neutron star that emits pulsating radio waves pulsar
a system of two stars that revolve around each other binary star
an elongated oval shape ellipse
a planet orbiting a star other than Earth's sun exoplanet
a group of stars held together by gravitational attraction star cluster
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