Antares

red supergiant · the heart of the Scorpion

550 light-years from Earth

So large that, placed where the Sun is, its surface would reach beyond the orbit of Mars. A hot blue companion orbits in its dusty wind.

• 680 times the Sun's radius (3.2 AU) · 550 light-years
• it will end as a supernova, maybe within 100,000 years

kind

star

size

6.3 AU across