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How large it is and how far away it is.
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∙ 13y 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).
From earth at night the moon appears bright what causes this?
The Sun.
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.
How bright a star appears to be in the night sky depends on its actual brightness and its?
Distance from Earth.
What phase of the moon appears completely dark when observed from Earth?
The phase of the moon that appears completely dark when observed from Earth is the new moon. When it is completely bright, it is the full moon.
What 2 factors determine a star's apparent magnitude?
There are three factors, actually. The star's size and temperature determine the absolute magnitude, or how bright the star really is. Those two factors can be considered as one - the star's absolute magnitude. The absolute magnitude combined with our distance from the star determines its apparent magnitude, or how bright the star appears to be from Earth. So, a big, hot, super bright star very far away may have the same apparent magnitude as a small, cool star that's fairly close to the Earth.
How does the factors of the climate affect the earth?
The factors of climate like excessive heat or cold affect the biological activities of all living being on the earth.
What two factors determine how bright a star looks like from earth?
It's luminosity and it's distance from Earth
What are the two factors that determine how bright a star looks from earth?
proximity to the moon and distance
What is the apparent brightness of the stars?
Astronomers define star brightness in terms of apparent magnitude how bright the star appears from Earth and absolute magnitude how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs.
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.
Why does the sun appear so bright in the sky?
because it closer to earth than other stars so it appears larger
