Photosphere: Quick Facts

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Photosphere of the Sun with limb darkening, image taken by the Solar and Heliospheric Observatory satellite, Oct. 29, 2003.

Observe a dopplergram showing the velocity of solar material in the photosphere captured by the Helioseismic and Magnetic Imager

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Sunspot Limb darkening Fraunhofer lines Facula D-lines Sun Heliosphere solar calendar Corona Chromosphere solar energy 6 Questions About the Sun Answered How hot is the Sun?The Sun Was Eaten: 6 Ways Cultures Have Explained Eclipses Solar eclipse How big is the Sun?

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View of the Andromeda Galaxy (Messier 31, M31).

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View of the Andromeda Galaxy (Messier 31, M31).

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M101 (NGC 5457, The Pinwheel Galaxy). Hubble Space Telescope image of face-on spiral galaxy Messier 101 (M101). Largest most detailed photo of a spiral galaxy that has ever been released from Hubble. Created from 1994-2003

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The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet

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Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

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