Brightness and color of the artificial star to match

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brightness and color of the artificial star to match the real star and discern the amount of energy provided to the artificial star image to accomplish this match. This is a measure of the luminous flux of the real star. The apparent brightness of a star can depend to some extent upon its ___________. Explanation: Color. Different colors produce different responses in the human eye. The eye is most sensitive to green and yellow light and has a lower sensitivity to the shorter wavelengths of blue and violet light and to the longer wavelengths of orange and red light. Photographic plates were devised to detect the light more accurately using color-sensitive photographic plates to filter the light to determine a more accurate magnitude of brightness. The colors of stars are determined by the distance and the temperature of the star. Below is an image of a star field in the region of Sagittarius showing stars of different colors: A perfect _____________ called a black body is an idealized body that completely absorbs all of the electromagnetic energy incident upon it. : Radiator. The star heats up until it reaches a temperature at which it emits radiation at exactly the same rate as it receives it, and then remains in equilibrium at that temperature. The ___________ emitted from black bodies is relative to the different wavelengths at different temperatures. Energy. A perfect radiator at any temperature emits some radiation at all wavelengths, but not in equal amounts. Note that a hotter black body emits more radiation at all wavelengths than does a cooler black body.
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However, the big difference is that a hotter black body emits the largest proportion of its energy at shorter wavelengths than a cooler black body does. Hot stars appear blue because most of their energy is at short wavelengths and cool stars appear red because most of their energy is at long wavelengths. The chart below shows the wavelengths of all types of energy, but in particular, note that orange and red are of long wavelengths, while violet and blue are of short wavelengths: A ____________ star is a double star or two stars revolving around each other. Explanation: Binary. In 1650, the Italian astronomer John Baptist Riccioli observed that the star Mizar, in the middle of the handle of the Big Dipper, appeared through his telescope as two stars. Mizar was the first double star to be discovered. In the century and a half that followed, many other closely separated pairs of stars were discovered telescopically.
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_____________ binaries consist of two stars in nearly the same line of sight, of which one is far more distant than the other. Explanation: Optical. They are not true binary stars, but appear to be because of the line of sight. Optical binaries are relatively rare. In studies of binary stars, it is found that the more _____________ stars are also the more luminous. Explanation:
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brightness and color of the artificial star to match the...

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