Antares is much bigger than Barnard's star, but they are both RED.
polaris
Barnards star has a mass of between 0.15 and 0.17 solar masses.
Scorpio
The surface temperature of the star Antares is estimated to be around 3,500 to 3,600 degrees Celsius, or 6,300 to 6,500 degrees Fahrenheit. This makes it a relatively cool red supergiant star compared to other stars.
A binary system is a term referring to two objects (usually stars, but also planets, galaxies or asteroids) whose gravitational interaction causes them to orbit about a common centre of mass.Antares has a companion star (or binary star) called Antares B which is at a distance of approximately 550 AU from Antares A. (Neptune for comparison is only 30 AU from the Sun). This "companion" takes around 878 years to orbit Antares A.
Antares is a red supergiant star and not a constellation or an asterism.
Antares is a slow variable star. All stars are "thermal"
antares is one of the biggest star known.
polaris
Barnards star has a mass of between 0.15 and 0.17 solar masses.
Antares (Alpha Scorpii) is a huge red hypergiant star, with a radius 800 times that of our own sun. There are some bigger stars though, such as Betelgeuse (1180 solar radii) and V354 Cephei (1520 solar radii), but the biggest known star is VY Canis Majoris, which is estimated to have a diameter between 1800 and 2100 times that of our own sun. If it were in the centre of our solar system its edges would almost reach the orbit of Saturn.
Barnards star has a mass of between 0.15 and 0.17 solar masses.
Barnard's Star is approximately 6 light years away.
Antares is the supergiant star in the constellation Scorpio.Antares is the supergiant in the constellation Scorpio.
blue
Scorpio
Yes, it is a red supergiant star.