Sun The Heat Is On!

Sun Characteristics Diameter : 865,374 miles Mass : 1.989 x 1030 kg 333X larger than the Earth Density : 1.62 x 105 kg/m3 Surface Gravity : 274.0 m/sec2 28X stronger than the Earth Volume : 1.412 x 1018 km3 1,300,000 larger than the Earth

Objects Orbiting The Sun Eight Planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune Asteroid Belt Between Mars & Jupiter Kuiper Belt & Oort Cloud Comet fields beyond Neptune Dwarf Planets Ceres, Pluto, Haumea, Makemake, Eris Tran-Neptunian Objects - Charon, Huya, Ixion, Orcus, Quaoar, Varuna

Sun’s Interior Core Radiative Zone Convection Zone “Center Of The Sun” 15,000,000 K Radiative Zone Individual photon collisions 2,500,000 K Convection Zone Hot gas rises & cold gas sinks 2,000,000 K

Layers Of The Sun Photosphere Chromosphere Corona “Surface Of The Sun” 6,000 K Chromosphere 2,000 K above photosphere 4,000 K – 20,000 K Corona Outermost layer of the sun 1,000,000 K (Electrically-charged particles)

Features Of The Sun Sunspots Prominence Solar Flare “Black spots on the Sun” Cooler areas on Sun’s surface Prominence Reddish loops of gas Link sunspot regions Solar Flare Large, violent eruption of gas Coronal Mass Ejection Huge, balloon-shaped volumes of electrically-charged gas

Sun Discovery Ulysses – 1990 SOHO – 1996 Genesis – 2001 Hinode – 2006 Studied the orbit of the Sun SOHO – 1996 Solar and Heliospheric Observatory Studied Sun and discovered Comets Genesis – 2001 Returned sample of solar wind Hinode – 2006 Studied magnetic fields of the Sun STEREO – 2006 Solar TErrestrial RElations Observatory Studies Coronal Mass Ejections

Sun Facts Known as Sol (Roman mythology) About 4.6 billion years old 1 million Earths could fit inside the Sun It takes 8 minutes, 20 seconds for sunlight to reach Earth Made up 73.46% Hydrogen and 24.85% Helium

Solar & Lunar Eclipse Video Solar Eclipse https://www.youtube.com/watch?v=_201ttTSG30 Lunar Eclipse https://www.youtube.com/watch?v=49O2MsT1txU

Literature Cited If.ufrj.br/teaching/astron/miranda.html Bobthealien.co.uk/miranda.htm Nineplanets.org Seasky.org/solar-system Solarviews.com