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| Huge ejection of solar particles directed towards earths magnetic field into the atmosphere which turns in energized oxygen |
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- The sudy of matter and energy in the universe
- blend of sciences(physics, geology, meteorology, chemistry, biology)
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| Earths average distance from the Sun, which is about 150 million kilometers |
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| When a powerful yet simple model makes predictions that survive repeated and varied testing |
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| The imaginary sphere on which objects in the sky appear to reside when observed from earth |
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| The point directly over Earths North Pole |
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| The point directly over Earth's south pole. |
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| The extension of Earth's equator onto the celestial sphere. |
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| Yearly path of the sun around the celestial sphere. |
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| the point on the celestial sphere directly beneath a given position or observer and diametrically opposite the zenith. |
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| The point directly overhead, which has an altitude of 90 degrees |
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| The angular distance between the horizon and an object in the sky. |
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| Direction around the horizon from due north, measured clockwise in degrees. For example the azimuth of due north is 0 degrees, due east is 90 degrees, due south is 180 degrees, due west 270 degrees. |
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| A star that always remains above the horizon for a particular latitude. |
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| The rotation of an object that always shows the same face to an that it is orbiting because its rotation period and orbital period are equal. |
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| the lighter, outlying regions of a shadow |
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| the dark central region of a shadow |
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| The apparent shifting of an object against the background, due to viewing it from different positions. |
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| The apparent shift in the position of a nearby star(relative to distant objects) that occurs as we view the star from different positions in Earth's orbit of the sun each year |
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| Motion that is backward compared to the norm.(When viewing the path of planets, usually) |
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| The gradual wobble of the axis of a rotating object around a vertical line |
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| The point at which an object orbiting the Sun is farthest from the Sun. |
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| The point at which an object orbiting the Sun is closest to the Sun. |
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| average distance of an orbiting object |
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| Rocky planets similar in overall composition to Earth |
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| Giant Gaseous planets similar in overall composition to Jupiter |
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