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The total amount of light that the star radiates each second.
Eldon Hilpert
Vincent Hilpert
the size of a star
Wiki User
∙ 7y agoThe luminosity of a star depends on its mass, and also on how much of the hydrogen has already been converted into helium, and how much of the helium has already been converted into heavier elements. Note that usually, at the start of their lifetime stars will mainly contain hydrogen.
Wiki User
∙ 8y agoIt is how bright a star is, but it depends on which star your talking about
Wiki User
∙ 13y agoThe total amount of light that the star radiates each second.
Wiki User
∙ 9y agoya i agree lumosity.com does suck
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What factors affect the color of a star?
The temperature affects the color of a star.
How does the diameter and luminosity of a main sequence star change when it becomes a giant or a supergiant?
In that case, both the star's diameter and its luminosity greatly increase.
How do size temperature and distance affect a star's magnitude or luminousity?
A star's real luminosity is proportional to the the square of its diameter, and more or less proportional to the fourth power of its absolute temperature. The star's apparent luminosity is proportional to its real luminosity. It is also inversely proportional to the square of the distance.
What correctly describes the relationship between the luminosity of two stars that have the same radius?
The star that is hotter will have a higher luminosity.
What luminosity measure that different from what absolute visual magnitude measures?
1.Luminosity is the amount of light emitted from a certain light source whereas brightness is the amount of light manifested or received. 2.The area of illumination is inversely proportional to brightness whereas luminosity isn't. 3.Brightness is usually expressed in 'Lumens' whereas luminosity is expressed in candela per square meter (photometry).
What factor affects the luminosity of a star?
the size of a star
What factors affect the color of a star?
The temperature affects the color of a star.
How is star luminosity measured?
A star's luminosity is measured according to the relevance to the sun. Basically for example, if a star is 8,300 degrees Celsius and has a luminosity of 0.001; the luminosity is compared to the sun.
What is a Polaris star luminosity?
The main star in the Polaris system has a luminosity which is 2500 times that of the Sun.
What affects the luminosity of stars?
There are 2 main factors: the size of the star and its surface temperature. A larger size means a larger surface area to emit light. A higher surface temperature increases the energy emitted. Seen from Earth, the brightness of a star depends on how far away the star is as well as its actual luminosity.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What is a sentence with luminosity in it?
I was enthralled by the luminosity of the deep water jellyfish.
How do astronomers measure stellar luminosity?
The reference that astronomers use to compare the luminosity of other stars is the sun's luminosity. The luminosity is denoted in multiples of the sun's luminosity. For example, the luminosity of the star Sirius is 25 times the luminosity of the sun.
What is the luminosity of gamma ceti?
It is a triple star system. Therefore every single star has different luminosity. However, as a whole the system is seen from earth at an appereant magnitude of 3.47, which means only %6 luminosity of the star vega.
How does the diameter and luminosity of a main sequence star change when it becomes a giant or a supergiant?
In that case, both the star's diameter and its luminosity greatly increase.
What does a stars luminosity measure?
Luminosity is the total amount of energy emitted by a star per second.
How is a star's brightness described?
By it's luminosity.
