UY Scuti

Star in the constellation Scutum

UY Scuti (BD-12°5055) is a red supergiant or hypergiant star, located 5,900 light-years away in the constellation Scutum. It is also a pulsating variable star, with a maximum brightness of magnitude 8.29 and a minimum of magnitude 10.56, which makes it too dim for naked-eye visibility. It is considered to be one of the largest known stars, with a radius estimated at 909 solar radii (632 million kilometres; 4.23 astronomical units), thus a volume of 750 million times that of the Sun.

From Wikipedia, under CC BY-SA. More on occurri.