the apparent magnitude of the star mizar is -7.48 !
An apparent brightness is the brightness of a star as measured by an observer.
Alkaid is the brightest star in the constellation Ursa Major, while Mizar is a fainter star in the same constellation. Alkaid is a hot, blue star that is much more luminous than Mizar, which is actually a double star system.
The apparent brightness of stars is called "apparent magnitude", and it is written with a lowercase "m" after the number.
The apparent brightness of stars is called "apparent magnitude", and it is written with a lowercase "m" after the number.
A star's brightness at a standard distance is referred to as its apparent magnitude. This standard distance is 10 parsecs (32.6 light-years) from Earth. Apparent magnitude allows astronomers to compare the brightness of stars as seen from Earth, regardless of their actual distance from us.
The brightness as seen from Earth is called the "apparent magnitude".The real brightness (defined as the apparent brightness, as seen from a standard distance) is called the "absolute magnitude".
Magnitude
The apparent brightness of a star is represented by its apparent magnitude, which is a logarithmic scale used to measure the brightness of celestial objects as seen from Earth. The lower the apparent magnitude number, the brighter the star appears in the sky. Each increase of one magnitude corresponds to a brightness factor of 2.5.
The apparent magnitude of a star is a measure of its brightness.
Apparent magnitude.
brightness
Absolute Brightness: How bright a star appears at a certain distance. Apparent Brightness: The brightness of a star as seen from Earth.