Sirius is actually a binary star system.
Sirius A has an apparent magnitude of -1.46 whereas Sirius B has an apparent magnitude of 8.3
Sirius B is a faint white dwarf companion of Sirius A It has an apparent magnitude of +8.3 and an absolute magnitude of +11.18
Sirius is a binary star system Sirius A and Sirius B.The distance separating Sirius A from B varies between 8.1 and 31.5 AU. (See related question).
No, but Sirius B is,
Sirius, which consists of both Sirius A and Sirius B is in the constellation Canis Major, which, if you are looking south, appears below and to the left of Orion. Sirius B itself is too dim to be seen from Earth; the vast majority of the light from Sirius is from Sirius A. Even then, as a binary system, the two stars are too close together for us to see them separately.
The Sirius Mystery was created in 1976.
Sirius B is a faint white dwarf companion of Sirius A It has an apparent magnitude of +8.3 and an absolute magnitude of +11.18
The two types of magnitude in space are (from what my textbook says) absolute and apperant brightness. HOPE I HELPED!!!
Sirius, which means that Rigel is brighter.
Sirius has less absolute magnitude than Rigel. Sirius is smaller and less luminous than Rigel, but much closer to us, so Sirius appears brighter. Sirius, in fact, is the brightest star in our sky (with the exception of our own star, the sun.) Rigel is still pretty bright, but many times farther away from us than Sirius.
Betelguese
-1.4
Yes. Sirius has the greatest apparent visual magnitude of any star in the sky except the sun.
Sirius.
It's apparent magnitude
Venus has an apparent magnitude [See related link] of -3.82 when it is opposite from the Sun, whereas Sirius has an apparent magnitude of -1.47. So Venus is always brighter (When seen) than Sirius.
The smaller numbers indicate brighter stars. Also, a negative magnitude is even brighter than zero magnitude.
The second brightest star is Canopus with an apparent magnitude of -0.72The brightest is Sirius with an apparent magnitude of -1.47