© Brent Coley 2009 | www.mrcoley.com The Sun • The sun is the center of our solar system. • It is a huge ball of hot gases (mostly hydrogen and helium). • It is a star (an object that produces its own energy). The Sun • It produces its own energy through a process called fusion. • Energy from the sun travels in waves. • Some waves can be seen as light, while others can be felt as heat. The Sun • Layers of the sun: –Core –Radiation Zone –Convection Zone –Photosphere –Corona The Sun Corona Photosphere Core Radiation Zone Convection Zone The Sun • Photosphere: the surface of the sun – the part of the sun we see • Corona: the sun’s atmosphere The Sun • sunspots: dark spots on the sun that are cooler than the rest of the photosphere The Sun • solar flares: brief bursts of energy from the photosphere The Sun • solar wind: particles that are released from a solar flare and thrown into space Public domain images courtesy of NASA.