Comparer des méthodes

	Simulation N-corps	Transfert de Hohmann
Domaine	Physique appliquée	Physique appliquée
Famille	Process / pipeline	Process / pipeline
Année d'origine	1687	1925
Auteur d'origine	Isaac Newton	Walter Hohmann
Type	Computational simulation algorithm	Trajectory optimization algorithm
Source fondatrice	Poincaré, H. (1892). Les méthodes nouvelles de la mécanique céleste. Gauthier-Villars.	Hohmann, W. (1925). Die Erreichbarkeit der Himmelskörper. R. Oldenbourg.
Alias	gravitational N-body problem, many-body simulation	Hohmann-Vallado transfer, two-impulse maneuver
Apparentées	5	4
Résumé	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.	The Hohmann transfer is a maneuver that transfers a spacecraft between two circular orbits using two impulsive burns (velocity changes). Introduced by German engineer Walter Hohmann in 1925, it is the most fuel-efficient method for coplanar orbital transfers when the transfer time is not severely constrained. The transfer orbit is an ellipse tangent to both the initial and final orbits.