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