UY Scuti

red supergiant · one of the largest stars known

5,900 light-years from Earth

Placed where the Sun is, its surface would reach most of the way to Jupiter. If it were a hollow ball, hundreds of millions of Suns would fit inside. Even so it is only 7 to 10 times the Sun's mass: it is enormous but thin.

• 909 times the Sun's radius (8.5 AU across) · 5,900 light-years
• light takes about 70 minutes to cross it

kind

star

size

8.4 AU across