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What determines the brightness of

1. how do scientists classify stars?by size distance and color by size distance and brightness by color brightness and distance
1. 32 answers
2. asked by PLEASE HELP
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A variable star is one whose brightness alternately increases and decreases. For one such star, the time between periods of
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2. asked by TayB
3. 744 views
A variable star is one whose brightness alternately increases and decreases. For one such star, the time between periods of
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2. asked by TayB
3. 3,093 views
Delta Cephei is one of the most visible stars in the night sky. Its brightness has periods of 5.4 days, the average brightness
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2. asked by E
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Question: According to the video, how did Hertzsprung and Russell set up their data chart for star evolution?(1 point) Responses
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2. asked by Landon Sharp
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What factor determines the strength or brightness of an echo in ultrasound imaging?Choose only ONE best answer. A Frequency B
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2. 41 views
The brightness of a star depends on how much light is released by the star and how far the star is from Earth. There are two
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The brightness of a light bulb varies inversely as the square of the distance from the source. If a light bulb has a brightness
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2. asked by claire
3. 625 views
The brightness of a light bulb varies inversely as the square of the distance from the source. If a light bulb has a brightness
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2. asked by claire
3. 586 views
As stars go through their life cycle, some end up as black holes while others end up as a white dwarf star. What physical
1. 1 answer
2. 118 views