What is the luminosity of our Sun?312

A star's luminosity is theGroup of answer choicesapparent brightness of the star in our sky.the surface temperature of the starrelated to the rate at which it produces energytotal amount of energy it radiates over its lifetime

Which star type has a surface temperature of 4000 K and a luminosity 1000 times greater than the Sun?

41. Light year is a unit of(1) time (2) distance(3) sunlight intensity (4) mass

The luminosity of the star Aldebaran is 520 times that of the Sun. The wavelength of light at peakintensity for Aldebaran is 740 nm and the wavelength of light at peak intensity for the Sun is 500 nm.Explain whether Aldebaran is cooler or hotter than the Sun.Calculate the ratio:radius of Aldebaran / radius of the Sun.

What is the brightness of a galaxy that has luminosity of 1041 W and is situated at a distance of 18 Mpc away.