| A | B |
|---|
| Atmosphere | a distinctive but intangible quality surrounding a person or thing |
| Aurora | colored light produced by charged particles from the solar wind and from the magnetosphere that react with and excite the oxygen and nitrogen of earth's upper atmosphere; usually seen in the sky near Earth's magnetic poles |
| Chromosphere | the thin layer of the Sun that is just above the photosphere and that glows a reddish color during a n eclipse |
| Convection | the energy transfer of energy by moving matter: on Earth, boiling water carries energy upward by convection |
| Convective Zone | the region of the sun's interior that is between the radionactive zone and the photosphere and in which energy is carried upward by convection |
| Corona | the outermost layer of the sun's atmosphere |
| Coronal Mass Ejection | a part of the corna gas that is thrown into space from the sun |
| Neutrino | a type of subatomic particle |
| Nuclear Fusion | the proccess by which nuclei of small atoms combine to form a new, more massive nucleus; the process releases energy |
| Photoshpere | "sphere of light". |
| Photosphere | the visible surface os the Sun |
| Positrons | Anti-Electron |
| Prominence | a loop of relatively cool, incandecent gas that extends above the photosphere |
| Protons | Positively charged particles |
| Radioactive Zone | the zone of the sun's interior that is between the core and the convective zone and which energy moves by radiation |
| Solar Flare | an explosive release of energy that comes from the sun and that is associated with magnectic disturbances on the sun's surface |
| Solar- Activity Cycle | Also called the sunspot cycle. An 11-year cycle during which the number of sunspots rises to a maximum or falls to a minimum. |
| Spectrograph | an instrument that separates light into colors and makes an image of the resulting spectrum |
| Sunspots | a dark area of the photosphere of the sun that is cooler than the surrounding areas and that has a strong magnetic feild |
