Astronomy
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each of the black spaces below before clicking
on it to display the answer.
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| Astronomy | study of the universe
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| Big Bang Theory | Theory that explains the creation of the universe
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| Doppler shift | the apparent change in the wavelength and frequency of sound waves that is could by the movement of the source, observer, or both
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| Red Shift | Is when a planet or star gets further away
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| Blue Shift | When a planet or star gets closer
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| Frequency | the number of waves produced in a given amount of time
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| Wavelength | the distance between corresponding points on a waves
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| Absolute Brightness (Magnitude) | how bright a star actually is
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| Apparent Brightness (Magnitude) | How bright a star looks
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| Cosmic Microwave Background (CMB) | radiation left over from the big bang
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| Universe | All of Space
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| Galaxy | A group of stars,gas,dust held by gravity
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| Solar System | Planets, suns and other things that rotate the sun
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| Star | A ball of hot gas, made up of hydrogen and helium, that undergoes nuclear fusion.
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| 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.
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| Electromagnetic Spectrum | All of the frequencies or wavelengths of electromagnetic radiation
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| AU-Astronomical Unit | Units used to measure the distance of the solar system
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| Solar Nebula | the cloud of gas and dust that formed our solar system
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| Gas Giant | Jupiter, Saturn, Uranus, Neptune
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| Nuclear Fusion | The process by which two or more small nuclei fuse to make a bigger nucleus
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| Convective Zone | hot plasma rises, cools as it nears the surface, and falls to be heated and rise again.
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| Photosphere | the luminous envelope of a star from which its light and heat radiate.
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| Chromosphere | a reddish gaseous layer immediately above the photosphere of the sun or another star. Together with the corona, it constitutes the star's outer atmosphere.
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| Corona | the rarefied gaseous envelope of the sun and other stars.
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| Sunspot | a spot or patch appearing from time to time on the sun's surface, appearing dark by contrast with its surroundings.
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| Prominence | a stream of incandescent gas projecting above the sun's chromosphere.
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| Solar Flare | brief eruption of intense high-energy radiation from the sun's surface,
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| Coronal Mass Ejection | significant release of plasma and accompanying magnetic field from the solar corona.
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| Light Year | the distance light travels in one year
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| Parallax | the effect whereby the position or direction of an object appears to differ when viewed from different positions
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| Main Sequence | the location on the H-R diagram where most stars are
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| HR-Diagram | Hertzsprung-Russell diagram, a graph that shows the relationship between a star's surface temperature and absolute magnitude
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| Nebular | the theory that the solar and stellar systems were developed from a primeval nebula.
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| Red Giant | a cloud of gas and dust
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| White Dwarf | A small, hot, dim star that is the leftover center of an old star
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| Nova | a star that gets brighter then fades
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| Neutron Star | A star that has collapsed under its own gravity
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| Pulsar | A spinning neutron star that produces radio waves
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| Black Hole | A star where light cant escape because of the immense gravity that pulls at its surface.
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| Constellations | a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure
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| Cosmology | the science of the origin and development of the universe.
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Created by:
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