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What is the luminosity of polaris?
Polaris has a luminosity of 2,200 solar luminosities.
How do you measure the distance to a cepheid?
Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.
Why are dwarf stars dim?
Dwarf stars are dim because they are small, so their luminosity (amount of emitted energy) is low compared to other stars, and low luminosity means more dimness.
Why is the suns luminosity 1?
A solar luminosity is equal to the current luminosity of the Sun, which is 3.839 × 1026 W, or 3.839 × 1033 erg/s.So dividing one solar luminosity with the Suns luminosity gives 1.Also it is a lot easier talking about a luminosity of 1 rather than 3.838 x 1026 W, the same way astronomers use 1 AU to mean 150,000,000km.
How does the luminosity of a blackbody vary with its surface temperature?
Both the absorption and the luminosity of a blackbody in equilibrium increase in magnitude with increasing temperature, and the spectral distribution of the luminosity increases in frequency (decreases in wavelength).
What is the luminosity of the sun?
The absolute luminosity is about 3.839×1026 W, or 3.839×1033 erg/second. The comparative luminosity of an astronomical object is based on the Sun, so it has a relative luminosity of 1.
If a star is blue is its luminosity high or low?
Blue stars are very hot stars and so usually have high luminosity.
What is a sentence with luminosity in it?
I was enthralled by the luminosity of the deep water jellyfish.
What is the significance of the mass-luminosity relationship?
The mass/luminosity relation is important because it can be used to find the distance to binary systems which are too far for normal parallax measurements.
What is the luminosity of the sun in watts?
the luminosity of the sun mesured in watts is a big number so heres something a little simpler 3.839 × 1026 W
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.
Who is the guy in the Luminosity commercial?
Michael Emerson is in the Luminosity commercial.
What is luminosity of the Rigel?
Rigel has a luminosity of 117,490 solar luminosities.
What is the luminosity of polaris?
Polaris has a luminosity of 2,200 solar luminosities.
What is a sentence with luminosity?
The stars in the night sky shine with a remarkable luminosity.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
How do you measure the distance to a cepheid?
Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.
