Black Holes
A black hole is an astronomical object whose gravitational attraction is so strong that it forms a region of space around it from which nothing, not even light, can escape. Black holes are not just found in star systems but are also found in the cores of galaxies. Explore a diverse set of black hole properties, including mass and Schwarzschild radius, using Wolfram|Alpha. Stellar-mass black holes are often inferred from x-ray emissions coming from star systems or from the gravitational tug they impart on their stellar neighbors. Supermassive black holes are found in the cores of many galaxies and can contain millions or billions of solar masses. Fewer intermediate black holes have been discovered but may be found within galaxies or at the center of globular star clusters.
Black Holes
Black holes rarely have names of their own. They are typically named after the star system or galaxy they are found in.
Compute the location and get properties of a stellar-mass black hole:
Specify a black hole in a galaxy:
Compare several black holes:
Summarize classes of black holes:
Black Hole Formulae
The properties of a black hole are determined primarily by its mass and type.
Calculate the properties of a theoretical black hole with a known mass:
Compute the properties of a rotating black hole:
Calculate properties of a theoretical black hole:
Calculate specific properties of a theoretical black hole:
Properties of Black Holes
Obtain a diverse set of properties for black holes, such as mass, Schwarzschild radius and entropy, as well as position-based properties.