手法を比較

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