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ESPS
Astronomy
Question | Answer |
---|---|
what does Astronomy mean and what is a example | The branch of science that deals with celestial objects, space, and the physical universe as a whole. |
Big Bang Theory | Theory of how the universe was created with a explosion |
Doppler Shift | A change in frequency due to the doppler effect |
Cosmic Microwave Background | Electromagnetic radiation as a remnant from an early stage of the universe in Big Bang |
Electromagnetic Spectrum | The range of wavelengths or frequencies over which electromagnetic radiation extends. |
AU- Astronomical Unit | Unit of length, the distance from Earth to the Sun. |
Convective zone | Its where hot plasma rises, cools as it nears the surface and falls to be heated and rise again. |
Chromosphere | A reddish gaseous layer immediately above the photosphere of the sun or another star. With the corona it makes up the star's outer atmosphere. |
Prominence | A large, bright, gaseous feature extending outward from the Sun's surface. in a loop shape |
Coronal mass ejection | A significant release of plasma and accompanying magnetic field from the solar corona. |
Pulsar | A highly magnetized rotating neutron star that emits a beam of electromagnetic radiation |
Cosmology | The study of the origin, evolution, and eventual fate of the universe |
Solar Nebula | hypothesis describes the formation of our solar system from a nebula cloud made from a collection of dust and gas |
Parallax, | the apparent displacement of an object because of a change in the observer's point of view. |
Main Sequence | a series of star types to which most stars belong, represented on a Hertzsprung–Russell diagram as a continuous band extending from the upper left (hot, bright stars) to the lower right (cool, dim stars). |
Absolute Brightness (magnitude) | True brightness of celestial object |
Apparent Brightness (magnitude), | the brightness of a celestial object as it is actually measured from the earth. |
Nebula | Large cloud of dust in space. |
Sunspot | Darker spots on the suns photosphere that have reduced temperatures. |
Solar Flare | a sudden flash of increased brightness on the Sun |