What is Stephenson 2-18?
Q: What is Stephenson 2-18?
A: Stephenson 2-18 is a red supergiant or red hypergiant star and is one of the largest known stars.
Q: How far away is Stephenson 2-18 from Earth?
A: Stephenson 2-18 is about 6,000 parsecs (20,000 ly) away from Earth in the constellation of Scutum.
Q: What is the spectral type of Stephenson 2-18?
A: The spectral type of Stephenson 2-18 is M6, which is pretty unusual for a supergiant star and corresponds to its cool temperature of 3,200 Kelvin.
Q: What is the radius of Stephenson 2-18 compared to the Sun?
A: The radius of Stephenson 2-18 is 2,150 times that of the Sun.
Q: What is the volume of Stephenson 2-18 compared to the Sun?
A: The volume of Stephenson 2-18 is 10 billion times that of the Sun.
Q: Is Stephenson 2-18 a member of the open cluster Stephenson 2?
A: Yes, Stephenson 2-18 is close to and a possible member of the open cluster Stephenson 2.
Q: Can Stephenson 2-18 fit many Earths in it?
A: Yes, Stephenson 2-18 can fit about 13 quadrillion Earths in it.
