3 ms·
The minimum mass for a black hole is the Planck mass, approximately 21 micrograms. Such a black hole is a Planck length in radius, has a Hawking temperature of
by scatters 5y ago
The minimum mass for a black hole is the Planck mass, approximately 21 micrograms. Such a black hole is a Planck length in radius, has a Hawking temperature of the Planck temperature, and will decay in Planck time, releasing Planck energy of 1.9 GJ (about the same as a tank of gasoline).