Astronomical Tools SunRefracting TelescopeReflector Telescope10 m Keck TelescopeView through atmosphereGreater resolving power outside atmosphereHubble Space TelescopeVery Large Array of RadiotelescopesElectromagnetic SpectrumJames MaxwellHeinrich HertzThomas EdisonGuglielmo MarconiKarl Jansky’s radio discoveryJansky’s radio antennaGrote ReberReber’s dish antennaReber’s galactic map of radio emissionsHow Radio Telescopes WorkNational Radio Astronomy ObservatoryArecibo, Puerto RicoRadio Image of SunSunSolar TelescopeStructure of SunPhoto of Sun’s granular surfaceSurface Detail of SunSpicules of the ChromosphereSolar CoronaSolar wind blows comet tailsAurorasAurora photo from SkylabGroup of SunspotsDetail of SunspotSunspot Variation over timeSolar ProminenceSolar InteriorSun now and laterRed Giant BetelgeuseNebula—eventual SunMain Sequence to Red Giant to White Dwarf1Astronomical ToolsSunChapter 23Pages 640-655Refracting TelescopeReflector Telescope 10 m Keck TelescopeView through atmosphereGreater resolving power outside atmosphere2Hubble Space TelescopeVery Large Array of RadiotelescopesElectromagnetic Spectrum James MaxwellUnified electricity and magnetism into aspects of the same force1860-1870http://www.nrao.edu/whatisra/hist_prehist.shtmlHeinrich HertzBuilt device to transmit 5 m long electromagnetic waves1888http://www.nrao.edu/whatisra/hist_prehist.shtmlThomas EdisonProposed experiment to measure electromagnetic radiation from Sun1890Never conducted the experimenthttp://www.nrao.edu/whatisra/hist_prehist.shtml3GuglielmoMarconiSensitive radio receiver allowed communicationhttp://www.nrao.edu/whatisra/hist_prehist.shtml#marconiKarl Jansky’sradio discoveryFound radio emission from Milky Way1933http://www.nrao.edu/whatisra/hist_jansky.shtmlJansky’s radio antennahttp://www.nrao.edu/whatisra/hist_jansky.shtmlGrote Reberhttp://www.nrao.edu/whatisra/hist_reber.shtmlReber’s dish antennahttp://www.nrao.edu/whatisra/hist_reber.shtmlReber’s galactic map of radio emissions4How Radio Telescopes Workhttp://www.nrao.edu/whatisra/radiotel.shtmlNational Radio Astronomy ObservatoryPlains of San Agustin, New Mexico, USAVery Large Array in golden glow at duskPhoto by Kelly D. GatlinArecibo, Puerto Rico Radio Image of Sunhttp://seds.lpl.arizona.edu/nineplanets/nineplanets/pxsol.htmlSun Solar Telescope5Structure of Sun Photo of Sun’s granular surfaceSurface Detail of Sun Spicules of the ChromosphereSolar Corona Solar wind blows comet tailshttp://www.astro.uva.nl/demo/sun/inter.htm6Auroras Aurora photo from Skylabhttp://www.astro.uva.nl/demo/sun/aarde.htmGroup of SunspotsDetail of SunspotSunspot Variation over time Solar Prominencehttp://antwrp.gsfc.nasa.gov/apod/image/0109/sunplume_soho_big.gifVideo clip http://antwrp.gsfc.nasa.gov/apod/ap030223.htmlAnother video clip http://spacescience.com/headlines/images/prominence/prominence_10jan00.mov7Solar Interior• Nuclear Fusion of 4 Hydrogen to 1 Helium• Difference in atomic mass is released as energy• Released as photons—light particles• Convection brings photons to photosphere• Sun will last about another 5 billion yearsSun now and laterThis page was copied from Nick Strobel's Astronomy Notes. Go to his site at www.astronomynotes.com for the updated and corrected version Red Giant BetelgeuseThis page was copied from Nick Strobel's Astronomy Notes. Go to his site at www.astronomynotes.com for the updated and corrected version Nebula—eventual Sunhttp://www.astro.uva.nl/demo/sun/leven.htmMain Sequence to Red Giant to White
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