photosphere
Deneb has a luminosity (apparent magnitude) of 1.25. However, in bolometric luminosity (solar units) Deneb is 54,000, whereas our Sun is 1.
It really depends on the units used. Sometimes the Sun is used as a comparison for the brightness of other stars, or even galaxies - in this case, the Sun's luminosity is arbitrarily defined as 1, and a star that is 10 times brighter will have luminosity 10, for example. However, if you use other units, for example watts, you get quite different numbers (3.846×1026 watts for the Sun, according to the Wikipedia).
V
The luminosity of the Sun is approximately 3.8 x 10^26 watts, which means it is emitting this amount of energy every second. This energy output is generated through nuclear fusion reactions in the Sun's core.
The Sun has a brightness or apparent magnitude [See related question] of -26.74 (yes negative).
Deneb has a luminosity (apparent magnitude) of 1.25. However, in bolometric luminosity (solar units) Deneb is 54,000, whereas our Sun is 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.
Polaris has an absolute visual magnitude of about -3.2, making it over 4,000 times more luminous than the Sun. Its luminosity is approximately 1,200 times that of the Sun in terms of total energy output.
Solar heat is produced by stars. The people who live on Earth get their solar heat from the sun.
Solar
It really depends on the units used. Sometimes the Sun is used as a comparison for the brightness of other stars, or even galaxies - in this case, the Sun's luminosity is arbitrarily defined as 1, and a star that is 10 times brighter will have luminosity 10, for example. However, if you use other units, for example watts, you get quite different numbers (3.846×1026 watts for the Sun, according to the Wikipedia).
We have a solar system because our Sun produced the surrounding planets.
it is produced by the sun. It is mostly produced in Canada.
It is energy produced by the sun's rays.
the core
solar energy.
Solar