手法を比較

	N体シミュレーション	ランベルト問題（Lambert's Problem）による軌道決定
分野	応用物理学	応用物理学
系統	Process / pipeline	Process / pipeline
提唱年	1687	1761
提唱者	Isaac Newton	Johann Heinrich Lambert
種類	Computational simulation algorithm	Orbital computation algorithm
原典	Poincaré, H. (1892). Les méthodes nouvelles de la mécanique céleste. Gauthier-Villars.	Lambert, J. H. (1761). Acta Helvetica. Physico-Mathematico-Anatomico-Botanico-Medica.
別名	gravitational N-body problem, many-body simulation	Lambert's problem, Lambert-Godstein trajectory problem
関連	5	4
概要	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.