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Stars Vocab

QuestionAnswer
Life Cycle of a Star nebula, protostar, star, red giant, planetary nebula, white dwarf, black dwarf
Interstellar Medium The gas and dust that exists in open space between the stars.
Nebula A large cloud of dust and gas in space
Protostar A contracting cloud of gas and dust with enough mass to form a star
Equilibrium A state of balance
Star a fixed luminous point in the night sky that is a large, remote incandescent body like the sun.
Main Sequence a diagonal area on an H-R diagram that includes more than 90 percent of all stars
Red Giant A large, reddish star late in its life cycle
Planetary Nebula a ring-shaped nebula formed by an expanding shell of gas around an aging star.
White Dwarf A small, hot, dim star that is the leftover center of an old star
Black Dwarf A white dwarf that has burnt out completely.
Red Super Giants massive stars become this, fusion continues lighter atoms fuse into heaver atoms core collapses
Supernova A gigantic explosion in which a massive star collapses and throws its outer layers into space
Neutron Star A star that has collapsed under its own gravity
Black Hole An object in space whose gravity is so strong not even light can escape.
(H-R) Hertzsprung–Russell diagram Plots each star on a graph and measures the star's magnitude against the temperature
Luminosity the brightness of a star in comparison with that of the sun
Brightness A psychological sensation caused by the intensity of light waves.
Absolute Magnitude The actual brightness of a star based on its size and stage it the life cycle.
Created by: Ella Henriksen
 

 



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