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ESPS Vocab-Raul A.
To help with finals
| Term | Definition |
|---|---|
| Astronomy | Astronomy is a branch of science that deals with space and space related things |
| Big Bang Theory | The big bang theory is a theory that states that a grand explosion created the universe |
| Red Shift | When light shifts towards the right/red side |
| Blue Shift | When light shifts towards the left/blue side |
| Frequency | The amount of times a thing happens within a given time |
| Wavelength | The distance between certain wave heights |
| Absolute Brightness (Magnitude) | How bright a star would be is it was a certain distance away from the earth |
| Apparent Brightness (Magnitude) | A measure of brightness |
| Cosmic Microwave Background (CMB) | electromagnetic radiation left over from the big bang |
| Universe | everything considered as a whole |
| Galaxy | A system of various stars |
| Electromagnetic spectrum | range of wavelengths over electromagnetic radiation |
| AU - Astronomical Unit | A unit of measurement |
| Light Year | a distance equal to how far light can travel in a year |
| Cosmology | The study of the creation of the universe |
| Solar System | A collection of around 8 planets with moon circling a sun |
| Star | A fixed point of light that is visible during the night |
| Stellar Spectrum | A way to classify stars by their characteristics |
| Planet | A celestial body that orbits a star |
| Solar Nebula | Description of the formation of our solar system from a nebula |
| Gas Giant | A large planet with low density that has a high amount of hydrogen and helium |
| Nuclear Fusion | A nuclear reaction when two smaller atoms are fused to make a larger one |
| Main sequence | A common series of star types |
| HR Diagram | A graph that shows a stars absolute magnitude to its surface temperature |
| Nebular | a cloud in space that is made of gas and dust that is visible on earth |
| Red Giant | A large star with a high luminosity but a low surface temperature |
| White Dwarf | A small star with a high density that rivals the size of a planet |
| Nova | A star that has a burst in brightness that later returns to normal in a few months |
| Neutron star | A celestial object with a small radius, high density and is formed of mostly compacted neutrons |
| Pulsar | A celestial body that is suspected to be a rotating neutron star |
| Black hole | A place in space that has such a high gravitational field that nothing can escape |
| Convective zone | The place in between the surface and the core |
| Radiative zone | A region inside of the stars interior |
| Photosphere | The layer of the star that produces heat and light |
| Chromosphere | The layer above the photosphere |
| Corona | The suns atmosphere |
| Sunspot | A dark spot in the sun that is caused by the suns electromagnetic field |
| Prominence | Standing out |
| Solar Flare | A flash of brightness that the sun produces |
| Coronal mass ejection | A release of plasma from the magnetic way |
| Kepler's law | Three laws made by Johannes Kepler made to show how the planets move around the sun |
| Eccentricity | Moving out of orbit cycle |
| Elliptical orbit | The orbit planets have over the sun |
| Formula of Eccentricity | the radius of a linear eccentricity |
Created by:
Raul_Aquino
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