Space Chapter 8

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Author:
farzamtheillest
ID:
264322
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Space Chapter 8
Updated:
2014-02-28 09:39:06
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Science
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Science
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  1. Electromagnetic Radiation
    Radiation which is part of the electromagnetic spectrum.

    E.G Radio waves, infrared, visible light, ultraviolet, x-rays, and gamma rays
  2. Refracting Telescope
    A telescope that uses a lens to collect light.
  3. Reflecting Telescope
    A telescope that uses a mirror to collect light.
  4. Satellite
    A human made object or natural celestial body that orbits an object of a larger size.

    E.G The moon
  5. Orbiters
    Observatories (telescopes) that orbit celestial objects.

    E.G Hubble Space telescope
  6. Solar Nebula Theory
    The main theory that describes how stars and planets are formed from gas and dust in spinning disks.
  7. Star
    A large celestial body made of hot gases mostly out of Hydrogen and Helium.
  8. Nebula
    A large cloud of dust and gases such as hydrogen and helium.
  9. Protostar
    A hot early form of a star that forms in the center of a nebula and evolves into a star once fusion occurs.
  10. Nuclear Fusion
    A process in which nuclei combine to form different elements and release energy up until fusion of iron.
  11. Photoshere
    The surface of a star and the visible layer of a star.
  12. Sunspot
    An area of strong magnetic fields of the Photosphere which is generally cooler.
  13. Solar Wind
    A stream of fast moving charged (ionized) particles ejected from the Sun into the Solar System.
  14. Solar Flare
    A sudden brightening of the Sun's surface which releases large amounts of energy interfering with electronics on Earth.
  15. Importance Of The Sun
    The heat it provides keeps life alive on Earth as well as light.
  16. Luminosity
    A measure of brightness for stars and other light emitting objects.
  17. Absolute Magnitude
    The magnitude of brightness of a star as if it were viewed from a distance of 36.62 light years from the Earth.
  18. Spectroscope
    An instrument which is used to measure properties of light used to find the elements stars are made of etc.
  19. Spectral Lines
    A bright or dark line in a spectrum resulting from an excess or deficiency of photons.
  20. Hertzsprung-Russell Diagram
    A graph which shows the absolute magnitude of stars plotted using their surface temperature, colour, and brightness and luminosity. Used to study stellar evolution.
  21. Main Sequence
    The Main Sequence is the distinctive band of stars on a Hertzsprung-Russell diagram that are known as dwarf stars and are in an equilibrium between gravity and outward pressure exerted.
  22. White Dwarf
    The remnant of a star which has collapsed and is extremely hot and dense, but not so dense in which it is a neutron star or black hole. It takes billions of years for a white dwarf to cool down.
  23. Supernova
    A incredible large celestial phenomenon in which a large mass star explodes at the end of its life releasing mass amounts of energy.
  24. Neutron Star
    A star which is incredibly dense and is the remnants of a large star. A star formed when electrons are pushed together so that neutrons are only left.
  25. How low-mass stars evolve
    A low mass star begins as a protostar then when fusion occurs becomes red dwarf then at the end of it life a white dwarf and eventually a black dwarf.
  26. How intermediate-mass stars evolve
    A low mass star begins as a protostar then when fusion occurs becomes an intermediate mass star then at the end of it life a white dwarf and eventually a black dwarf.
  27. How high-mass stars evolve
    They begin as a protostar then when fusion occurs they become high-mass stars and eventually grow to become a supergiant and then at the end of their lives they explode as supernova and either form a black hole or a neutron star.
  28. Black Hole
    A region of space with and extreme gravitational field which no matter or even light can escape at its event horizon.

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