Observed from the earth, the brightest star appears to be the one that is actually not, as it depends on the observation distance, let's see to what extent.
Looking for the brightest star
Observing from the earth, the brightest star in the sky is the Sun, which outshines all the others, due to the shorter distance that separates it from us.
But if we exclude the observation point, the brightest star in the sky is Sirius, part of the constellation of the Cane Maggiore and visible from any geographical area of the earth, capable of emitting an amount of light that exceeds that of the sun by as much as 25 times.
As for its brilliance, it has twice the brightness of the second star in order of brightness, precisely Canopus.
Considering the observation of the night sky, however, there are stars that at certain times of the year have higher luminosity, in particular Jupiter, Venus and Mars.
Other very bright stars, seen from the earth, seem dimmer than others because they are located at a much greater distance.
