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Astronomy Vocab

Pedroza Maria

TermDefinition
Solar System The sun and all of the planets and other bodies that travel around it.
Star A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.
Stellar Spectra Continuous black body spectrum and photo-sphere.
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.
Solar Nebula A large cloud of gas and dust such as the one that formed our solar system.
Gas Giant The name given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune.
Nuclear Fusion The process by which two or more small nuclei fuse to make a bigger nucleus.
Main Sequence The location on the H-R diagram where most stars lie.
HR Diagram A graph relating the temperature and brightness of a star.
Nebula A large cloud of gas and dust in space.
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 A star that suddenly becomes brighter.
Neutron Star A star that has collapsed under its own gravity.
Pulsar A rapidly spinning neutron star that produces radio waves.
Blackhole A region of space having a gravitational force so intense that no matter can escape
Astronomy The study of space, the universe and celestial bodies.
Big Bang Theory
Doppler Shift
Red Shift
Blue Shift
Frequency
Wavelength
Absolute Brightness (magnitude)
Apparent Brightness (magnitude)
Cosmic Microwave Background (CMB)
Universe
Galaxy
Electromagnetic Spectrum
AU-Astronomical unit
Convective Zone
Photosphere
Chromosphere
Corona
Sunspot
Prominence
Solar Flare
Coronal mass ejection
Light year
Parallax
Constellations
Cosmology
Created by: pedrozam