How bright the object would be if it was the same distance from Earth as the sun is
The absolute magnitude is a measure of the star's luminosity hence the smaller the size the less the absolute magnitude.
yes yes it does
yes yes it does
Antares Absolute and Apparent Magnitude Absolute Magnitude~ -5.2 Apparent Magnitude~ +0.60
Its absolute magnitude is -7.92
The absolute magnitude of Porrima is 3.04.
The star is called Altair; the absolute magnitude is estimated at 2.21.The star is called Altair; the absolute magnitude is estimated at 2.21.The star is called Altair; the absolute magnitude is estimated at 2.21.The star is called Altair; the absolute magnitude is estimated at 2.21.
There are three factors, actually. The star's size and temperature determine the absolute magnitude, or how bright the star really is. Those two factors can be considered as one - the star's absolute magnitude. The absolute magnitude combined with our distance from the star determines its apparent magnitude, or how bright the star appears to be from Earth. So, a big, hot, super bright star very far away may have the same apparent magnitude as a small, cool star that's fairly close to the Earth.
An estimation of the absolute magnitude is −20.9. See related question.
Apparent magnitude is 0.77 Absolute magnitude is 2.21Wikipedia lists its visual magnitude as 0.77.
Constellations don't have an absolute magnitude. That is a property of individual stars.
That's the number called the star's "Absolute Magnitude".That is called the star's "absolute magnitude".