corona - outer rays, 2nd hottest layer of the sun, chromosphere - middle layer, responsible for the color of the sun, photosphere - inner layer near core, produces light of the sun, core - hottest layer, fusion of hydrogen occurs here , solar winds - radiation that moves outwards from the sun in all directions, aurora belts - occurs when solar wind radiation enters the atmosphere, sunspots - cooler storm-like regions on the sun, change every 11 years, magnetosphere - protects us from solar wind radiation, constellation - a grouping of stars, parallax - the angle at which you see a star in the nigh sky, binary system - stars that come in pairs, apparent magnitude - how bright a stars appears to be on earth, absolute magnitude - the true brightness of a star, nebulae - birthplace of a star, supernova - star explosion bright light, luminosity - another word for brightness ,

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