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Marano- Sun, Constel
| Question | Answer |
|---|---|
| Name the layers of the sun | corona, chromosphere, photosphere, convective zone, radiative zone, core |
| Corona | sun's outer atmosphere |
| chromosphere | deep red layer under corona, only visible during a solar eclipse |
| photosphere | gases are thick enough to see on visible surface |
| convective zone | hot gases rise, cool and sink |
| radiative zone | very dense that light may take millions of years to pass through |
| core | where energy is produced through nuclear fusion |
| sunspots | areas which are a little cooler on the sun |
| solar flares | giant storms on the surfaces of the sun creating light shows |
| auroras | light shows |
| constellations | sections of the sky that contain 1 of 88 imagined pictures made by stars in the night sky |
| apparent motion | because of the Earth's rotation stars appear to circle around Polaris |
| circumpolar stars | stars that circle around Polaris |
| Actual motion | take thousands of years to move- we are moving |
| Ursa Minor | contains the Little Dipper, North Star at end of pan handle |
| Ursa Major | contains Big Dipper |
| pointer stars | two stars farthest from the handles that point to Polaris |
| asterism | a picture made by stars within a constellation |
| Orion | the hunter |
| light years | distance by which we measure stars because they are so far away |
| Astrolabe (quadrant) | tool used to find the altitude of a star or celestial object |
| Altitude | angle between the star and the horizon |
| horizon | light where the sky and the Earth appear to meet |
| Zenith | the point directly overhead- 90 degrees |
| Change with latitude and time of year | altitude, horizon, and zenith |
| celestial sphere | imaginary sphere that surrounds the Earth |
| celestial equator | Equator's location on the celestial sphere |
| Vernal equinox | where the Sun first passes on the first day of spring |
| Right Ascension | hours East of the vernal equinox |
| Declination | degrees North or South of the celestial equator |
| Ecliptic | Apparent path the Sun takes across the celestial sphere |
Created by:
seagullq
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