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