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| electromagnetic radiation |
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Definition
| an array of energy (radiowaves, microwaves, infrared, visible light, ultraviolet, xrays, and gamma rays) |
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| when photons exert a pressure (push) on matter |
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| the study of properties of light that are wavelength dependent |
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| a spectrum that is produced by a glowing solid, liquid, or gas under high pressure. |
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| a machine that spreads out the wavelengths in a manner similar to a prism |
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| dark line or absorption spectrum |
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| a spectrum produced when "white light" passes through a comparatively cool gas at low pressure |
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| bright line or emission spectrum |
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| a spectrum produced by hot matter at low pressure |
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| the positions of the bright and dark lines in the spectra shifting when the source of energy moves relative to the observer. when it is approaching the sound seems to have a higher than normal pitch and when it is moving away the pitch sounds lower than normal. |
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| a telescope that employs lenses to collect and focus light |
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| when the lens acts like a prism spreading out the colors in the light |
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| a telescope which uses a curved mirror to collect and focus light |
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| a telescope which contains a big dish that bounces the light back to a receiver which focuses the incoming radio waves |
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| when several telescopes are wired together |
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| a light sphere that radiates most of the sunlight we see and therefore appears at the bright disk of the sun |
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| small bright markings that are surrounded by narrow, dark regions |
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| a relatively thin layer of hot incandescent (glowing) gases a few thousand kilometer thick |
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| the outermost portion of the solar atmosphere which is very tenuous and is visible only when the brilliant photosphere is blocked |
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| when steams of protons ad electrons that boil from the corona blow at high speeds great enough to escape the gravitational pull of the sun |
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| the most conspicuous features on the surface of the sun which are dark blemishes |
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| huge cloud-like structures consisting of concentrations of chromospheric gases which are best observed when they are on the edge or limb of the sun where they often appear as bright arches that extend into the corona |
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| the effects of solar flares also called the northern and southern lights |
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| the source of the suns energy |
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| a nuclear reaction which converts four hydrogen nuclei into the nucleus of a helium atom |
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| a flamelike structure that extends upward about 10,000 kilometers into the lower corona almost like trees that reach into our atmosphere (produced by turbulent motion of the granules below) |
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| brief outbursts that normally last an hour or so and appear as a sudden brightening of the region above a sunspot cluster |
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