What units of measurement do you measure the brightness of stars?

Answer 1

there are two separate ways that astronomers measure the brightness of a start, there is actuall and aparent brightness. In apparent brightness, the measure how bright it looks to all the humans on Earth. However, the actual brightness of a star is different. Say a star is really, really bright, but really far away. That star would look preety dim. Or if a star is not so bright, but really close, like the Sun. The actuall brightness of a star is harder to measure, but is possible by use of waves and stuff like that, I don't know too much about actuall brightness

Answer 2

If you mean the methods used, they are all quite indirect. The results of different observations are combined to get the information about the stars. You can't, for example, take a thermometer to the star; nor can you directly apply a measuring rod to the star.

Answer 3

Brightness of stars (apparent and absolute magnitude) is measured by convention, taking another star as a standard.

The scale called "apparent magnitude" is the usual measure.

It is a scale comparing the apparent brightness of stars, as seen from Earth.

Answer 4

In astronomy, the unit of brightness, or luminosity is the amount of energy radiated per unit of time. In SI terms, this is joules per second, or watts.

Answer 5

Absolute magnitude.

Answer 6

Solar radii.

One Suns' radius.