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The luminosity of a star depends greatly on the star's mass. A more massive star has a larger pressure and temperature in its core; as a result, nuclear fusion will proceed at a faster rate.
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What is another term for brightness of a star?
Magnitude is the common term, the luminosity of a star is also used.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What factor affects the luminosity of a star?
the size of a star
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.
Which star is giving off more light?
Those with a higher luminosity or a greater absolute magnitude.
What is another term for brightness of a star?
Magnitude is the common term, the luminosity of a star is also used.
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 star has a surface temperature 9000k and luminosity about 1 to 20 times greater than the sun?
Sirius
What is a Polaris star luminosity?
The main star in the Polaris system has a luminosity which is 2500 times that of the Sun.
Why would two stars have different sizes and tempertes but same luminosity?
The luminosity depends on what stage of its life cycle the star is in. Also, the apparent luminosity depends on the distance from earth.
Why does the luminosity of the star depend on both its radius and its temperature?
The bigger the star's radius, the greater its surface area which emits the light. The bigger the temperature, the more luminous is the light the star is emitting.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What if the star has a bigger surface area but a smaller temperature how would that affect the luminosity?
As temperature decreases, luminosity will also decrease As radius increases (and with it surface area, but radius is a much easier to work with if you're trying to compare stars so we usually say radius) luminosity will also increase. If both are happening at the same time, it is possible that the luminosity of the star will remain more or less constant. Often one change will dominate the other, such as when a star goes through the red giant phase when the increase in radius has a far greater effect than the drop in temperature, and the star becomes more luminous.
What factor affects the luminosity of a star?
the size of a star
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.
