Truly a giant, Antares, the brightest star in the
constellation of Scorpius, has an
estimated diameter of 400 million kilometres.
Antares lies at the heart of Scorpius, the
constellation of the Scorpion. Nearby in the
sky is M4, a Globular Cluster that is actually ten
times farther away than its bright neighbour.
A giant among giants: With an estimated diameter of 400 million kilometres, the red
star Antares is large enough to consume the solar system almost to the orbit of Mars.
eSky © copyright Mark Fisher 1999-2014