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List three factors that control the apparent brightness of a star as seen from earth?
The apparent brightness of a star is determined by its luminosity (true brightness), distance from Earth, and any intervening dust or gas that may absorb or scatter its light. These factors affect how bright a star appears in the night sky to an observer on Earth.
What is the brightness of a star at 10PC from the earth?
The brightness of a star at 10 parsecs (32.6 light-years) from Earth would depend on its intrinsic luminosity and the amount of light that reaches Earth. The apparent brightness, or apparent magnitude, of the star would decrease with the square of the distance from Earth. This is described by the inverse square law, which states that the brightness is inversely proportional to the square of the distance.
What compares the brightness of stars as if they were the same distance from earth?
midorz
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?
The apparent brightness of the sun would decrease because the intensity of sunlight weakens with distance. By moving the Earth from 1 AU to 2 AU, the distance between the Earth and the Sun doubles, resulting in a decrease in the amount of sunlight reaching Earth and causing a decrease in apparent brightness.
What variable of apparent brightness is eliminated when discussing absolute brightness?
The variable of distance is eliminated when discussing absolute brightness. Absolute brightness specifically refers to the inherent brightness of an astronomical object without the influence of its distance from the observer.
What is a the brightness of Mars as seen from earth?
it is doubble the brightness
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 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 brightness as if it were a standard distance?
A star's brightness at a standard distance is referred to as its apparent magnitude. This standard distance is 10 parsecs (32.6 light-years) from Earth. Apparent magnitude allows astronomers to compare the brightness of stars as seen from Earth, regardless of their actual distance from us.
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.
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.
What are the three main elements that determine a stars brightness from earth?
The three main elements that determine a star's brightness from Earth are its luminosity (intrinsic brightness), distance from Earth, and any intervening dust or gas that may affect the amount of light that reaches Earth.
List three factors that control the apparent brightness of a star as seen from earth?
The apparent brightness of a star is determined by its luminosity (true brightness), distance from Earth, and any intervening dust or gas that may absorb or scatter its light. These factors affect how bright a star appears in the night sky to an observer on Earth.
Is the brightness of the moon caused by the speed of it travelling around the earth?
No. The brightness of the moon is caused by the sun shining on it, just like the brightness of a beach, a snowdrift, a mountainside, or a lake, none of which travels around the earth.
What is the brightness of a star at 10PC from the earth?
The brightness of a star at 10 parsecs (32.6 light-years) from Earth would depend on its intrinsic luminosity and the amount of light that reaches Earth. The apparent brightness, or apparent magnitude, of the star would decrease with the square of the distance from Earth. This is described by the inverse square law, which states that the brightness is inversely proportional to the square of the distance.
What is the name of the brightness of a star viewed from earth?
Apparent magnitude.
What compares the brightness of stars as if they were the same distance from earth?
midorz
