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What else can I help you with?
Can you compare the absolute brightness of star x with star y why or why not?
To compare the absolute brightness of star X with star Y, we need to know their distances from Earth and their intrinsic luminosities. Absolute brightness, or absolute magnitude, refers to how bright a star would appear at a standard distance of 10 parsecs. If we have both stars' absolute magnitudes, we can directly compare them; otherwise, we cannot accurately assess their brightness without additional information about their distances and luminosities.
What 2 things must an astronomers measure to calculate a star's absolute brightness?
To calculate a star's absolute brightness, astronomers must measure its apparent brightness and its distance from Earth. Apparent brightness is how bright the star appears from our perspective, while distance is typically measured in parsecs or light-years. Using these measurements, they can apply the inverse square law of light to determine the star's intrinsic luminosity, or absolute brightness.
Which factor does not affect the apparent brightness of a star?
How old a star is.
What is a stars absolute magnitude?
A star's absolute magnitude is a measure of its intrinsic brightness, defined as the brightness it would have if placed at a standard distance of 10 parsecs (about 32.6 light-years) from Earth. It allows astronomers to compare the true luminosity of stars without the effects of distance or interstellar material. The scale is logarithmic; a difference of 5 magnitudes corresponds to a brightness factor of 100, meaning a star with a lower absolute magnitude is brighter than one with a higher value.
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 does the absolute brightness of the star depend on?
the brightness of a star
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
Is the size of a star the only factor that setermines its absolute magnitude?
No. I assume you mean the star's diameter. The area is proportional to the square of the area - so the bigger the star, the brighter it will be - other things being equal. However, the star's surface temperature also affects its brightness.
How does apparent magnitude of a star differ from absolute magnitude?
Apparent magnitude is the brightness as observed from earth, while absolute magnitude is the brightness of a star at a set distance. The apparent magnitude considers the stars actual brightness as well as it's distance from us, but absolute magnitude takes the distance factor out so that star brightnesses can be directly compared.
A star's brightness as if it were a standard distance is called?
Absolute Brightness .
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.
Can you compare the absolute brightness of star x with star y why or why not?
To compare the absolute brightness of star X with star Y, we need to know their distances from Earth and their intrinsic luminosities. Absolute brightness, or absolute magnitude, refers to how bright a star would appear at a standard distance of 10 parsecs. If we have both stars' absolute magnitudes, we can directly compare them; otherwise, we cannot accurately assess their brightness without additional information about their distances and luminosities.
What 2 things must an astronomers measure to calculate a star's absolute brightness?
To calculate a star's absolute brightness, astronomers must measure its apparent brightness and its distance from Earth. Apparent brightness is how bright the star appears from our perspective, while distance is typically measured in parsecs or light-years. Using these measurements, they can apply the inverse square law of light to determine the star's intrinsic luminosity, or absolute brightness.
What is the absolute brightness of Polaris?
The absolute magnitude of the main star in the Polaris system is -3.6
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 it called when brightness is how bright a star seems or looks?
The brightness of a star to an observer on Earth is called it's Apparent Magnitude. The intrinsic brightness of a star is known as it's Absolute Magnitude.
How can you find the luminosity of a main sequence star?
You can find the luminosity of a main sequence star by measuring its apparent brightness and distance from Earth. Knowing the distance allows you to calculate the star's absolute brightness. Luminosity is then determined by comparing the absolute brightness of the star to that of the Sun, which has a known luminosity.
