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