Compactness Scale Lab
Slide mass and radius to compare a body with its Schwarzschild radius and see where stars, white dwarfs, neutron stars and black holes lie.
Schwarzschild radius14.8 km
R / rₛ0.81
Object typeBlack hole
Interactive model — simplified for intuition, not precision ephemerides.
Concepts in this lab
schwarzschild radiuscompactnessneutron starblack hole
Connected topic
Open lessonNeutron stars
A complete introduction to Neutron stars within Compact stars, linking observations, physical models, history and modern applications.