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