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science Alvarez

Astronomystudy of space
H-R Diagram Scatter plot of stars
astronomy study of space
big bang theory scientific theory on how the universe started
Doppler shift change of frequency due to the Doppler affect
frequency number of occurrences
wavelength the difference successive crests of a wave.
Absolute brightness the apparent brightness
apparent brightness luminosity as from viewed from earth
solar system Place where the sun,planets stars are at
star object that is bright and made out of different materials
planet An object that orbits a star, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit.
gas giant a planet that has a deep, massive atmosphere, such as Jupiter, Saturn, Uranus, or Neptune
stellar spectra Continuous black body spectrum and photo sphere
nuclear fusion a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
red giant A large, reddish star late in its life cycle
white dwarf A small, hot, dim star that is the leftover center of an old star
nova new
pulsar A neutron star that produces radio waves
blackhole a theory; there is one at the center of every galaxy and have so much gravitational pull that even light can't escape its pull
main sequence the location on the H-R diagram where most stars lie
cosmology study of the universe
Created by: Alex2022
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