Neither. The Sun only appears bright because it is close. Sirius is far larger and brighter than our Sun. Our Sun is probably in the top 40% of all stars in the Milky Way, while Sirius is probably in the top 5%.
But there are many other stars that are far brighter even that Sirius.
No. Sirius is far from a cold star. Sirius is actually a binary system about 8.6 light years away. Sirius A is a white main sequence star just over twice the size of the sun. Sirius B is a white dwarf stellar remnant of about 0.978 solar masses. The temperature of the two stars are far higher than that of our sun. The sun is about 5778 Kelvin, Sirius A is almost twice that at 9,940 K and Sirius B is many times that at 25,200 K.
If you weighed 100lb on Earth you would weigh about 5,400 lb for about a millisecond before you were incinerated and turned into vapour. Sirius A is a star about twice the size of our Sun.
Polaris - the current North star is a multiple star system., consisting of the main star and smaller companions. The main star Alpha Ursae Minoris is a bright star, a 6 solar mass supergiant and it is a main sequence star. Orbiting very close to this main star is a white dwarf of roughly 1.5 solar masses. This is not a main sequence star. Orbiting further out is the third companion, a 1.39 solar mass star. This is a main sequence star. There are also two more distant components (α UMi C and α UMi D) - Polaris is thought to be part of an open cluster - I do not know if these later two stars are main sequence or not.
The next brightest body in the sky, after the sun and the moon, is the planet Venus. The brightest star is the one called "Sirius", in the constellation "Canis Major".
Sun IS a STAr
Sirius
No sirius is a star much hotter than the sun.
Sirius is the brightest star in the night sky, but the brightest overall is the sun.
The sun. After the sun, Polaris and Sirius are very popular.
Sirius
No. In terms of diameter Sirius is 1.7 times the size of the sun.
Sirius is a binary star system consisting of two stars: Sirius A and Sirius B. Sirius A is the larger and more luminous star, with a diameter of about 1.7 times that of the Sun. Sirius B is a white dwarf star with a diameter of about 12,000 kilometers, roughly the size of Earth. The distance between the two stars is about 20 AU (astronomical units).
No. There is no such thing as an "earth-like star" as Earth is a planet, not a star. Sirius A is a star that is larger and brighter than the sun.
Yes, Sirius is larger than Barnard's Star. Sirius, a binary star system, consists of Sirius A, which is about 2.1 times the mass of the Sun and has a diameter approximately 1.7 times that of the Sun. In contrast, Barnard's Star is a red dwarf with a mass only about 0.14 times that of the Sun and a much smaller diameter. Thus, Sirius is significantly more massive and larger than Barnard's Star.
well the reason is that the sirius is the north brightest star also it is approximately 1.7 times larger than our sun on the hand the sun has a diameter of 1,393,000km as we know the Sirius is a white dwarf star
No. The only star in our solar system is the sun.
Yes, Sirius is about twice as massive as our sun, making it a medium mass star. It is quite a bit brighter, however, and is the second brightest star in our sky.