Big stars are brighter than small stars, and hot stars are brighter than cool ones.
The term is "absolute magnitude".
Theres `Absolute Magnitude` which is the brightness of a star at a set distance. Then there is `Apparent Magnitude` which is the apparent brightness from earth, regardless of distance.
Apparent magnitude and absolute magnitude.
1) absolute brightness 2) distance 3) intervening dust
Brightness of stars (apparent and absolute magnitude) is measured by convention, taking an another star as a standard.
The term is "absolute magnitude".
Theres `Absolute Magnitude` which is the brightness of a star at a set distance. Then there is `Apparent Magnitude` which is the apparent brightness from earth, regardless of distance.
increase in absolute brightness as they increase in temperature.Increase in brightness as they increase in temperature
Apparent magnitude and absolute magnitude.
Absolute Magnitude
increase in absolute brightness as they increase in temperature.Increase in brightness as they increase in temperature
1) absolute brightness 2) distance 3) intervening dust
Brightness of stars (apparent and absolute magnitude) is measured by convention, taking an another star as a standard.
Both relate to brightness; both are measured in the same units; both are used for astronomical objects such as stars or galaxies.
This has nothing to do with shape. The apparent magnitude means how bright a star looks to us. The absolute magnitude means how bright the star really is (expressed as: how bright would it look at a standard distance).
That is called "absolute brightness" or "absolute magnitude". It is defined as how bright a star would look at a standard distance (10 parsec, to be precise). The brightness of stars can vary a lot; some stars (supergiants) are millions of times as bright as our Sun, others (red dwarves) are thousands of times less bright. (Our Sun is in the top 10 percentile, though.)
"Absolute value" is used for numbers, not for stars. For stars, there is something called "absolute brightness" or "absolute magnitude"; that refers to how bright the star really is (as opposed to what it looks like for us). It is defined as how bright the star would look at a standard distance.