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