Memory Astronomy Memory GameVersion en ligne Astronomy Memory Game par Grant Studios The "r" in Keplers third law stand for Radius Atoms are combined into heavier elements through the process called Nuclear Fusion In the core is where fusion of hydrogen occurs in the sun A planets revolution is the slowest when furthest from the sun Atoms are combined into heavier elements through the process called Nuclear Fusion The "r" in Keplers third law stand for Radius A solar prominence (also known as a filament when viewed against the solar disk) is a large, bright feature extending outward from the Sun's surface Sunspots are cooler than the plasma around them In the convection zone plasma rises as it heats up then falls Hydrogen and Helium make up most of the suns mass According to Keplers first law planets orbit in a Ellipse Sunspots are cooler than the plasma around them The "p" in Keplers third law stands or Orbital Period According to Keplers first law planets orbit in a Ellipse In the core is where fusion of hydrogen occurs in the sun In the convection zone plasma rises as it heats up then falls A solar prominence (also known as a filament when viewed against the solar disk) is a large, bright feature extending outward from the Sun's surface The "p" in Keplers third law stands or Orbital Period Hydrogen and Helium make up most of the suns mass A planets revolution is the slowest when furthest from the sun