Here is the size of our Sun vs the largest known star ☀️ Stephenson 2-18 (also cataloged as Stephenson 2-DFK 1 and RSGC2-18) is the current record holder for the largest star known, with size 2,150 times that of the Sun! Taking this estimate as correct, it would take nearly 9 hours to travel around its surface at the speed of light, compared to 14.5 seconds for the Sun. 🪐 If Stephenson 2-18 replaced the Sun in our Solar System, it would extend past the orbit of Saturn. 🌎Stephenson 2-18 is loca

Stephenson 2-18 (also known as St2-18 or Stephenson 218) ranks among the largest known stars in the universe. This colossal red supergiant is situated in the constellation Scutum, roughly 19,000 light-years away from Earth. Its estimated radius is about 2,150 times that of the Sun—so immense that if placed at the center of our solar system, its surface would stretch past the orbit of Saturn. Despite its size, Stephenson 2-18 is relatively cool, with a surface temperature of around 3,200 K, which

63K views · 1.3K reactions | Largest Stars Size Comparison Stephenson 2-18 #UniverseScience | Universe Science | Facebook