A set of three laws describing the motion of planets around the sun.
Newton's Laws of Motion: The three laws that govern the motion of objects in space and on Earth, including the law of inertia, the law of acceleration, and the law of action and reaction.
Gravitation: The force that attracts two objects with mass to each other, which is dependent on the mass and distance between the objects.
Orbital Motion: The motion of an object in a stable orbit around another object, due to the gravitational force between them.
Circular Orbits: Orbits that have a constant radius and a constant speed, which is necessary for stable motion around a central object.
Elliptical Orbits: Orbits that have a varying distance between the object and the central object, resulting in a varying speed and acceleration.
Kepler's Laws: Three laws that describe the motion of planets around the sun, including the law of orbits, the law of areas, and the law of periods.
Conservation of Energy: The principle that energy cannot be created or destroyed, but can only be transferred or converted from one form to another.
Escape Velocity: The minimum speed required for an object to escape the gravitational pull of a planet or other celestial body.
Perturbation Theory: The study of how the gravitational pull of other planets and objects affect the orbit of a planet or satellite.
Spacecraft Trajectories: The planned path that a spacecraft takes through space, taking into account gravitational forces and other factors.
Astrodynamic Engineering: The field that applies the principles of orbital mechanics and spacecraft trajectories to the design and operation of spacecraft.
Satellite Communication: The use of satellites to transmit and receive data, including signals for television, telephone, and internet communication.
Orbital Debris: The collection of man-made objects in orbit around the Earth, including abandoned spacecraft and fragments from collisions or explosions.
Planetary Science: The study of planets, their moons, and other bodies in the solar system, including their formation, properties, and evolution.
Solar Sailing: The propulsion of a spacecraft using the pressure from sunlight instead of traditional rocket thrusters.
Law of Orbits: This law states that planets move around the sun in an elliptical orbit with the sun at one of the two foci.
Law of Areas: This law states that an imaginary line joining a planet and the sun sweeps out equal areas in equal times.
Law of Periods: This law states that the square of the period of revolution of a planet around the sun is proportional to the cube of the semi-major axis of its elliptical orbit.