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How does the distance and size of a star impact its brightness?
Wiki User
∙ 15y ago
If two stars have the same size and brightness, but one is further away, it will appear dimmer. The brightness of a star is inversely proportionate to the square of its distance. In other words, a star ten light years away will be four times dimmer than one just as bright (absolute magnitude) that is only five light years away.
Larger stars also tend to be brighter, though most of the really big stars are red giants.
Wiki User
∙ 15y ago
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What 3 factors affect how bright a star appears from earth?
The 3 factors that affect a star's brightness as viewed from earth, are: The star's age, distance from earth, and actual magnitude (scale a star's brightness is measured in).
What is a stars brightness as if it were a standard distance?
Theres `Absolute Magnitude` which is the brightness of a star at a set distance. Then there is `Apparent Magnitude` which is the apparent brightness from earth, regardless of distance.
Why one star may appear brighter than other star?
The brightness of a star depends on the star's temperature, size, and distance from Earth.Distance on which you can see the stars.
What does apparent magnitude depend upon?
apparent magnitude (brightness of a star when viewed from Earth) depends on the size of the star, how hot it is, and its distance from Earth
What are two factors that determine the brightness of a star?
distance from the sun and the age of the star
What factors determine a stars brightness as seen from earth?
Distance from Earth, size of star, and temperature of star.
What factors determine a stars brightness seen from earth?
Distance from Earth, size of star, and temperature of star.
List three factors that control the apparent brightness of a star as seen from earth?
Three factors that affect a star's brightness are the star's distance from earth, its age and its luminosity. The farther the star is from earth, the less bright it appears. As a star increases in age, its brightness also increases. Its brightness also depends on its luminosity, which is the amount of energy the star emits per second.
Is star colour caused by the distance star from eartth?
No. Star color is caused by factors such as size and temperature. However, apparent magnitude (brightness) IS partially caused by distance.
What 3 factors affect how bright a star appears from earth?
The 3 factors that affect a star's brightness as viewed from earth, are: The star's age, distance from earth, and actual magnitude (scale a star's brightness is measured in).
What terms takes into consideration the brightness of a star but ignores the differences that distance can make?
"Apparent magnitude" is the star's brightness after the effects of distance. "Absolute magnitude" is the star's brightness at a standard distance.
What do star's brightness depend on?
it depends upon 3 factors,1-the distance from the earth, 2-size of star and 3-age of the star.
What is a stars brightness as if it were a standard distance?
Theres `Absolute Magnitude` which is the brightness of a star at a set distance. Then there is `Apparent Magnitude` which is the apparent brightness from earth, regardless of distance.
A star's brightness as if it were a standard distance is called?
Absolute Brightness .
Why one star may appear brighter than other star?
The brightness of a star depends on the star's temperature, size, and distance from Earth.Distance on which you can see the stars.
What does apparent magnitude depend upon?
apparent magnitude (brightness of a star when viewed from Earth) depends on the size of the star, how hot it is, and its distance from Earth
What is difference between apparent brightness and absolute brightness?
Absolute Brightness: How bright a star appears at a certain distance. Apparent Brightness: The brightness of a star as seen from Earth.
