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Download The Sun as a Star
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The Sun Our Nearest Star The Solar Spectrum Image Source: http://en.wikipedia.org/wiki/Sun http://en.wikipedia.org/wiki/Sun X-ray Yohkoh Soft X-ray Telescope (SXT). From an object ~ million Kelvin Ultra-Violet Solar and Heliospheric Observatory (SOHO). UV from highly charged Iron ions Brighter regions ~ 1 million Kelvin Darker are somewhat cooler The Fraunhofer Spectrum Sourcehttp://csep10.phys.utk.edu/astr162/lect/sun/spectrum.html Limb Darkening Source: NASA http://solarscience.msfc.nasa.gov/surface.shtml Sunspots Source: NASA http://solarscience.msfc.nasa.gov/surface.shtml T ~ 3700 Life ~ days- weeks As large as 80,000 km Strong Magnetic Fields Usually in sets with Opposite magnetic Polarity 11 year cycle Faculae Source: NASA http://solarscience.msfc.nasa.gov/surface.shtml Hotter Regions Few thousands of kilometers Granules Source: NASA http://solarscience.msfc.nasa.gov/surface.shtml ~ 1000 km 20 minutes C0nvection Cells
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