Types of Stars Series #4 Neutron Stars

When a star runs out of fuel to burn, it implodes upon itself. This massive implosion of a star is a massive release of energy and gravity is known as a supernova. When a massive star supernovas, it creates a black hole. When a star that is only about 2 times the size of our sun supernovas, it leaves behind a core, and this remaining core is the Neutron Star.

The immense amount of gravity present when a supernova occurs creates this star core that we know as a Neutron Star. The star, as the name implies, is an incredibly dense core of almost entirely neutrons. Because of this, the core is essentially a giant nucleus like that of an atom. It is not held together by fusion like other stars, but solely by gravity. The Neutron Star is essentially a star basely solely on the ease of defining it as such.

Pictured below is the first sighting of a known neutron star. Note the distinct coloration difference from the rest of the stars in the sky.