click below
click below
Normal Size Small Size show me how
C h 29
The Sun
| Question | Answer |
|---|---|
| spectra | different wavelengths of radiation used to determine the elements that make up a star |
| fusion | combining of small nuclei to produce energy; occurs in the interior of stars |
| radiative zone | zone of the Sun's interior between the core and the convective zone; here radiation moves by radiation |
| convective zone | region of the Sun's interior between the radiative zone and the photosphere; here energy is carried upward by convection |
| photosphere | innermost layer of the Sun's atmosphere; "sphere of light" |
| sunspots | relatively cooler, dark regions on the photosphere |
| chromosphere | layer of the Sun's atmosphere just above the photosphere; "color sphere" |
| corona | outermost region of the Sun's atmosphere; so faint that only can be seen during a solar eclipse |
| solar wind | electrically charged particles that stream outward from the Sun |
| prominence | great clouds of glowing gasses, forming huge arches that reach high above the Sun's surface |
| solar flare | an explosive release of energy that comes from the Sun and is associated with magnetic disturbances on the Sun's surface |
| aurora | colored light produced by charged particles from the solar wind and the magnetosphere and that react with the Earth's upper atmosphere |