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List three factors that control the apparent brightness of a star as seen from earth?
Wiki User
∙ 13y ago
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.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoThe 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).
Wiki User
∙ 14y agoA star's apparent brightness is measured by its distance from Earth, the star's apparent magnitude, and how much the star's light is altered as it passes through the Earth's atmosphere.
Wiki User
∙ 13y agoThe distance the star is from Earth. The size of the star.
Wiki User
∙ 13y agoThe real (absolute) brightness, the distance from Earth, and anything that absorbs light between the star and Earth.
Wiki User
∙ 11y ago- Temperature
- Size
- Distance from Earth
- (Added) Matter obscuring it.
Wiki User
∙ 14y agoThe absolute (real) brightness of the star, and the distance from the Earth. The first part can be considered the product of brightness per unit area, and the total surface of the star.
Wiki User
∙ 13y agoAge of the star, size, and temperature
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How bright a star appears as seen earth is called?
Apparent magnitude is the brightness of an object as seen from Earth without any atmosphere.
What variable of apparent brightness is eliminated when discussing absolute brightness?
Distance. "Absolute magnitudes" are all calculated as if viewed from the same distance, while "apparent magnitude" is how bright the star appears to be as seen from Earth.
What is difference between apparent brightness and true brightness?
Apparent brightness: how bright an object - such as a star - looks to us. True brightness: how bright such an object really is. Defined as: how bright it would look at a standard distance.
The earth is moved from 1 au from the sun to 2 au from the sun how is the apparent brightness of the sun as seen from earth affected?
It appears to be one quarter as bright.
What three things affect the apparent magnitude of a star?
1: The size of the planet.2: The planet's distance from the Sun.3: The "albedo" of the planet (the percentage of the Sun's light it reflects).If you mean how bright the planet appears to us on Earth, then the distance from Earth is obviously very important.
What two factor affect a stars apparent brightness?
Two factors that affect a star's apparent brightness are: 1.) The distance between the Earth and the star 2.) The absolute magnitude (the actual brightness) of the star Hope that helps :P
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.
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.
A star's brightness is the brightness seen by humans on Earth. A star's brightness is its actual brightness and does not depend on where the star is viewed from.?
The brightness as seen from Earth is called the "apparent magnitude".The real brightness (defined as the apparent brightness, as seen from a standard distance) is called the "absolute magnitude".
What is the name of the brightness of a star viewed from earth?
Apparent magnitude.
What is the measure of the star's brightness?
The measure of a star's brightness is its magnitude. A star's brightness as it appears from Earth is called its Apparent Magnitude.Star's brightness is measured by there magnitude.
What is a stars apparent magnitude?
a stars brightness as seen from Earth
What the measure of a stars brightness called?
The measure of a star's brightness is its magnitude. A star's brightness as it appears from Earth is called its Apparent Magnitude.Star's brightness is measured by there magnitude.
Compare and contrast apparent magnitude and absolute magnitude?
Apparent Magnitude is the star's brightness as it appears from earth. absolute magnitude is the apparent brightness of a star if viewed from a distance of 32.6 light years away.
Compare apparent magnitude and absolute magnitude?
Apparent Magnitude is the star's brightness as it appears from earth, while, Absolute Magnitude is the apparent brightness of a star if viewed from a distance of 32.6 light years away.
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 an example absolute brightness?
Anything that is not the measure of intrinsic brightness of a celestial object.
