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  • 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.

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Is it possible for two regular stars to have the same absolute magnitude but differ in apparent magnitude?

One dimmer star can be closer than a brighter star that is far away. Light flux decreases as the square of the distance. A star that is three times as far away will have to shine nine times brighter than the closer star (absolute magnitude) to appear to have the same magnitude (apparent magnitude). Because apparent magnitude is the brightness of a star, as seen from Earth, whereas absolute magnitude is the brightness of a star as seen from the same distance - about 32.6 light years away.


What are three factors that determine the apparent magnitude of a star?

Its real (absolute) magnitude; its distance from Earth; the amount of light that's absorbed by matter between the star and us (extinction); distortions due to gravitational lensing.


What three things most likely directly affect carrying capacity?

Food, Space and water


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.


Why can two stars can have the same apparent magnitude and different total magnitudes?

Two different stars with different luminosity may appear to have the same brightness to an observer because the brighter may be more distant. This illustrates the need in astronomy to help range distant stars; since apparent magnitude alone will not yield enough information to gauge distance. The establishment of a "standard candle" or object of known brightness can be used for comparison; these can be established through various means including statistical models, observation of variable stars, behavior of nearby supernovae, etc. Once the distance of a star is known, the absolute magnitude can be derived from the apparent magnitude using the inverse-square law.

Related Questions

What three things effect magnitude?

The three things that affect magnitude are the distance between the observer and the event, the intensity of the event itself, and the type of measurement scale used to quantify the magnitude (e.g., Richter scale for earthquakes).


Are there any prominent stars ire in Leo?

Yes, at least three - The three brightest stars in Leo the Lion are : Alpha Leonis or Regulus (the Lion's heart) with an apparent magnitude of 1.35, Beta Leonis or Denebola (the Lion's tail) with an apparent magnitude of 2.14 and Gamma Leonis or Algieba (where the Lion's mane meets his body) with an apparent magnitude of 1.98


What is the stars in a Leo?

Here is some information on three of Leo's stars - The three brightest stars in Leo the Lion are : Alpha Leonis or Regulus (the Lion's heart) with an apparent magnitude of 1.35, Beta Leonis or Denebola (the Lion's tail) with an apparent magnitude of 2.14 and Gamma Leonis or Algieba (where the Lion's mane meets his body) with an apparent magnitude of 1.98


What three factors determine the magnitude of star?

The apparent magnitude of a star is dependent on the star's size, temperature and distance from where it is observed. An absolute magnitude is determined by the same three factors, but the distance is fixed at 10 parsecs.


Which stars are significant in Leo?

The three most significant stars in Leo the Lion are : Alpha Leonis or Regulus (the Lion's heart) with an apparent magnitude of 1.35, Beta Leonis or Denebola (the Lion's tail) with an apparent magnitude of 2.14 and Gamma Leonis or Algieba (where the Lion's mane meets his body) with an apparent magnitude of 1.98


Leo and its stars?

The three brightest stars in Leo the Lion are : Alpha Leonis or Regulus (the Lion's heart) with an apparent magnitude of 1.35, Beta Leonis or Denebola (the Lion's tail) with an apparent magnitude of 2.14 and Gamma Leonis or Algieba (where the Lion's mane meets his body) with an apparent magnitude of 1.98 Hope that helps!


What stars are located in the constallation Leo the lion?

Here are some details of the three brightest stars in Leo the Lion. The three brightest stars are: Alpha Leonis or Regulus (the Lion's heart) with an apparent magnitude of 1.35, Beta Leonis or Denebola (the Lion's tail) with an apparent magnitude of 2.14 and Gamma Leonis or Algieba (where the Lion's mane meets his body) with an apparent magnitude of 1.98


What are three brightest stars in the Leo constellation?

The three brightest stars in Leo the Lion are : Alpha Leonis or Regulus (the Lion's heart) with an apparent magnitude of 1.35, Beta Leonis or Denebola (the Lion's tail) with an apparent magnitude of 2.14 and Gamma Leonis or Algieba (where the Lion's mane meets his body) with an apparent magnitude of 1.98 Hope that helps!


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.


Is it possible for two regular stars to have the same absolute magnitude but differ in apparent magnitude?

One dimmer star can be closer than a brighter star that is far away. Light flux decreases as the square of the distance. A star that is three times as far away will have to shine nine times brighter than the closer star (absolute magnitude) to appear to have the same magnitude (apparent magnitude). Because apparent magnitude is the brightness of a star, as seen from Earth, whereas absolute magnitude is the brightness of a star as seen from the same distance - about 32.6 light years away.


Which three adjectives apply to a star with a very high ranking of apparent magnitude?

small, cold, and very far away from Earth


What some names of the stars that make up the Leo constellation?

The three brightest stars in Leo the Lion are : Alpha Leonis or Regulus (the Lion's heart) with an apparent magnitude of 1.35, Beta Leonis or Denebola (the Lion's tail) with an apparent magnitude of 2.14 and Gamma Leonis or Algieba (where the Lion's mane meets his body) with an apparent magnitude of 1.98