Astrodynamics Calculator is an easy-to-use app for astrodynamics computations.

Includes

• Luminosity of Cepheid variable
• Absolute visual magnitude of Cepheid variables
• Black hole evaporation time
• Black hole temperature
• Cosmological recession velocity
• Relativistic pressure
• Neutron star degeneracy pressure by non-relativistic neutrons
• Chandrasekhar mass
• Angular radius of Einstein ring
• Absolute magnitude of Sun i band
• Black hole Schwarzschild radius
• Black hole gravitational redshift
• Gravitational wave luminosity
• Cosmological lambda density parameter
• Hubble parameter at redshift
• Hubble law radial velocity
• Friedmann equation based on pressure
• Friedmann equation
• Eddington luminosity limit based on solar mass
• Eddington luminosity limit
• Cosmological redshift
• Cosmological matter density parameter
• Cosmological curvature density parameter
• Cosmology critical density