Stars are powered by nuclear fusion in their cores. Explore a diverse set of stellar properties, including the star type and end state, using Wolfram|Alpha. A star that fuses hydrogen in its core is known as a main sequence star, but as stars age and run out of hydrogen in their core, they begin to evolve into subgiants, giants and possibly supergiant stars. The primary determining factor for how a star evolves and eventually ends its life is its mass. Low-mass stars typically end their lives as white dwarf stars after becoming giants. More massive stars can end their lives as neutron stars or black holes after undergoing a supernova explosion.
Identify stars based on various catalogs they appear in. Bright stars have common names, but many stars only have catalog identifiers.
Compute the location and get properties of a star: