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The brightness of a star as observed from Earth decreases with distance due to the inverse square law, meaning that as the distance doubles, the observed brightness is reduced to a quarter. Additionally, a star's apparent size, or angular diameter, diminishes with increased distance, making it appear smaller even though its actual size remains unchanged. Thus, a distant star can be much larger than a nearby star, but it may appear fainter and smaller due to the vast distance separating them.
What else can I help you with?
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 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 factor does not affect the apparent brightness of a star?
The apparent brightness of a star is primarily affected by its intrinsic luminosity, distance from Earth, and any interstellar material that may dim its light. However, the color of the star does not directly affect its apparent brightness; it relates more to the star's temperature and stage of life rather than how bright it appears from our perspective. Thus, while color can indicate other properties of the star, it does not influence its apparent brightness.
Which factor does not affect the apparent brightness of a star?
How old a star is.
Why must astronmers figure out a star's distance to calculate it's actual brightness?
For the same real brightness, at a larger distance it would look less bright. On the other hand, you may have two stars that look like they are the same brightness, but one might be million times brighter (in real brightness) than the other - which would be compensated by the fact that the brighter star is a thousand times farther away.
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).
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 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 are the factors that affect the brightness of the star?
Distance and intervenng or close celestial bodies
What are the factors that affect the brightness of star?
Distance and intervenng or close celestial bodies
What factors determine a stars brightness seen from earth?
Distance from Earth, size of star, and temperature of star.
What factors determine a stars brightness as seen from earth?
Distance from Earth, size of star, and temperature of star.
What are the factors that may affect the brightness of star?
Distance and intervenng or close celestial bodies
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 are two factors that determine the brightness of a star?
distance from the sun and the age of the star
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 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.
