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