How bright is the sun?

Answer:
The Sun's intrinsic brightness or luminosity can be defined on two scales.

  1. How bright does it appear from Earth in relation to other objects. - Apparent magnitude.
  2. How bright does it appear if viewed from the same distance as other objects - Absolute magnitude.

The Suns Apparent magnitude is -26.74 (Yes negative) whilst it's absolute magnitude is 4.83.

This means that the Sun is around 450,000 times brighter than the moon (an apparent magnitude of -12) , but from Neptune the Sun is -20. So the Sun is brighter on Neptune than the Moon is from Earth.

First answer by Cosmospup. Last edit by Marsman999. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 3 [recommend question].