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science Alvarez
| Astronomy | study 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 |