 The Sun has an apparent magnitude of − 26 @.@ 7 , but its absolute magnitude is only + 4 @.@ 83 . Sirius , the brightest star in the night sky as seen from Earth , is approximately 23 times more luminous than the Sun , while Canopus , the second brightest star in the night sky with an absolute magnitude of − 5 @.@ 53 , is approximately 14 @,@ 000 times more luminous than the Sun . Despite Canopus being vastly more luminous than Sirius , however , Sirius appears brighter than Canopus . This is because Sirius is merely 8 @.@ 6 light @-@ years from the Earth , while Canopus is much farther away at a distance of 310 light @-@ years . 
 The Sun <a href='got' title='1'><mark>has</mark></a> an apparent magnitude of − 26 @.@ 7 , but its absolute magnitude <a href='drop_aux' title='2'><mark>is</mark></a>only + 4 @.@ 83 . Sirius , the brightest star in the night sky as seen from Earth , <a href='drop_aux' title='3'><mark>is</mark></a>approximately 23 times more luminous than the Sun , while Canopus , the second brightest star in the night sky with an absolute magnitude of − 5 @.@ 53 , <a href='drop_aux' title='4'><mark>is</mark></a>approximately 14 @,@ 000 times more luminous than the Sun . Despite Canopus being vastly more luminous than Sirius , however , Sirius <a href='uninflect' title='5'><mark>appears</mark></a> brighter than Canopus . This is because Sirius <a href='drop_aux' title='6'><mark>is</mark></a>merely 8 @.@ 6 light @-@ years from the Earth , while Canopus <a href='drop_aux' title='7'><mark>is</mark></a>much farther away at a distance of 310 light @-@ years . 
The Sun got an apparent magnitude of − 26 @.@ 7 , but its absolute magnitude only + 4 @.@ 83 . Sirius , the brightest star in the nite sky as seen from Earth , approximately 23 times more luminous than the Sun , while Canopus , the second brightest star in da night sky with an absolute magnitude of − 5 @.@ 53 , approximately 14 @,@ 000 times more luminous than the Sun . Despite Canopus being vastly more luminous than Sirius , however , Sirius appear brighter den Canopus . This is because Sirius merely 8 @.@ 6 light @-@ years from tdaEarth , while Canopus much farther away at a distance of 310 light @-@ yrs .