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	N-kroppssimulering	Lambert's problem (Lambert's problem)
Ämnesområde	Tillämpad fysik	Tillämpad fysik
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1687	1761
Upphovsperson	Isaac Newton	Johann Heinrich Lambert
Typ	Computational simulation algorithm	Orbital computation algorithm
Ursprungskälla	Poincaré, H. (1892). Les méthodes nouvelles de la mécanique céleste. Gauthier-Villars.	Lambert, J. H. (1761). Acta Helvetica. Physico-Mathematico-Anatomico-Botanico-Medica.
Alias	gravitational N-body problem, many-body simulation	Lambert's problem, Lambert-Godstein trajectory problem
Närliggande	5	4
Sammanfattning	N-body simulation is a computational method for modeling the dynamics of a system of particles under mutual gravitational forces. Originating from Newton's laws of motion and gravitation, it solves the fundamental equations of celestial mechanics. This technique is essential for understanding planetary orbits, star cluster evolution, and cosmological structure formation.	Lambert's problem is a classical astrodynamics boundary-value problem that determines an orbit connecting two points in space given a transfer time. Formulated by Johann Heinrich Lambert in the 18th century, it is fundamental to trajectory design for interplanetary missions and spacecraft maneuvers. The solution provides the orbital elements and velocities needed to transition between two positions.