UNIVERSE
ASTEROIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why do some stars appear brighter in the sky than others?
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Some stars are bigger, so they appear brighter.
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Some stars are closer to Earth so they appear brighter.
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Some stars are burning at a hotter temperature, therefore appear hotter.
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All of the options listed are correct.
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Explanation:
Detailed explanation-1: -A star’s brightness also depends on its proximity to us. The more distant an object is, the dimmer it appears. Therefore, if two stars have the same level of brightness, but one is farther away, the closer star will appear brighter than the more distant star-even though they are equally bright!
Detailed explanation-2: -Stars have a wide range of apparent brightness measured here on Earth. The variation in their brightness is caused by both variations in their luminosity and variations in their distance. An intrinsically faint, nearby star can appear to be just as bright to us on Earth as an intrinsically luminous, distant star.
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