Apparent Magnitude is also known as Visual Magnitude. If you used the 1997 Parallax value, you would get an absolute magnitude of -2.43 If you used the 2007 Parallax value, you would get an absolute magnitude of -2.54. Magnitude, whether it be apparent/visual or absolute magnitude is measured … Gamma Draconis (Eltanin) is a star in the constellation Draco. Its name comes from the Arabic for "the serpent" and stands for the whole constellation. Rastaban has an apparent magnitude of 2.79 which is how bright we see the star from Earth. If you used the 1997 Parallax value, you would get an absolute magnitude of -1.04 If you used the 2007 Parallax value, you would get an absolute magnitude of -1.13.
Gamma Draconis (Eltanin) is a star in the constellation Draco. Eltanin (Gamma Draconis) is the brightest star in the constellation Draco. Eltanin's high northerly position takes it nearly through the zenith as seen from London, causing it to be known formerly as the zenith star and to be heavily studied. The Thuban star system has a radial velocity of -13.0 km / -8.0 mi per second. Apparent Magnitude is also known as Visual Magnitude. Magnitude, whether it be apparent/visual or absolute magnitude is measured by a number, the smaller the number, the brighter the Star is.

It has an apparent magnitude of +2.24 It has an absolute magnitude of -1.04 Beta Draconis (β Draconis, abbreviated Beta Dra, β Dra) is a binary star and the third-brightest star in the northern circumpolar constellation of Draco.With an apparent visual magnitude of 2.79, it is bright enough to be easily seen with the naked eye. Thuban has an absolute magnitude of -1.20. It has an apparent magnitude of +2.24 It has an absolute magnitude of -1.04

Though it bears the designation Alpha, its apparent magnitude is 3.65, which is 3.7 times fainter than the brightest star in the constellation, Gamma Draconis (Eltanin), whose apparent magnitude is 2.24.