Sirius is actually a double star system consisting of two Stars - Sirius A and Sirius B. The mass of Sirius A is 2.02 solar masses (4.018 x 1030 kg).
The mass of Sirius B is 0.978 solar masses (1.945 x 1030 kg).
about 650 times the diameter of the sun the sun is 1.392.000 km big but the star appears tho chance its shape now and then so the size differs a bit every one and a while. that`s what the say on wikipedia at least
Sirius is a binary star system
Sirius A is about 1.7 times larger than our Sun
Sirius B is about 0.0084 times the size of the Sun (It's a tiny red dwarf)
According to Wikipedia, Sirius has 1.711 times the radius (and therefore, 1.711 times the diameter) of our Sun, or about 2.4 million kilometers (for the diameter).
Rigel has greater "absolute magnitude" than Sirius.
But Sirius has greater "apparent magnitude" than Rigel. This means that Sirius is visually brighter than Rigel.
1.6×10^28 m^3 (cubic meters) (assuming sphere)
4×10^18 mi^3 (cubic miles)
5×10^-6 AU^3 (astronomical units cubed)
1.6×10^34 mL (milliliters)
Rigel, by a lot.
Approximately three girth units.
Sirius is the brightest star in the night sky of earth not a galaxy
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.
Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.
Not that we know of.
No, Sirius is not part of our solar system. The only star in our solar system is the sun.
Sirius has a mass 0.978 that of the Sun, and a radius 0.0084 times that of the Sun. No, actually Sirius A has a mass of 2.2 that of the Sun and a radius 1.711 times that of the Sun.
Sirius has a mass 0.978 that of the Sun, and a radius 0.0084 times that of the Sun. No, actually Sirius A has a mass of 2.2 that of the Sun and a radius 1.711 times that of the Sun.
Algol Sirius (Dog Star) has a radius of 1.711 Solar masses. Algol (El Ghoul or demon) has a radius of 2.3 Solar masses.
Sirius is a double star; the larger of the pair is twice the mass of the Sun and about 1.7 times the Sun's radius. So it would be about 740,000 miles radius.. and would be about five times the Sun's volume.
Sol radius = 695000 km, mass = 1.9891×1030 kg Sirius radius = 1.71 times that of Sol, mass = 2.02 times that of Sol. (Sol = our Sun)
Sirius is Harry's godfather. Sirius Black is Harry's godfather.Harry is sirius's Godson.
It is not real. Sirius is a two-star system containing only Sirius A and Sirius B.
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. Sirius consists of two stars. Sirius A is larger than the sun but is not a giant. Sirius B is a white dwarf,
No, but Sirius B is,
The Alan Parsons Project - Sirius
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.