
astrocalc.org
Astro CalculationsA Pendulum on Another Planet. Penny in Free Fall. Distance of a Falling Object. Moon's Distance With A Light Wave. Doppler Wavelength Shift of Light. Frequency of Electromagnetic Radiation. Period of orbiting the Sun. Gravitational pull of the Earth and Moon. Speed of Orbiting Satellite. Using a moon to calculate a planet's mass (new). Fusing Hydrogen in the Sun. Escape Velocity off an Asteroid. Apparent Magnitude of a Double Binary. Time Dilation for Passing Ships. Log in to track progress.
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