Elliptical trajectory of a single planet around a star with perihelion advance (very exaggerated) [Trajectoire elliptique d'une unique planète autour d'une étoile avec avance de périhélie (très exagérée)].
Here, the perihelion advance is very very exaggerated, when in reality it is very very small (in particular in the solar system).
For example: the observed perihelion advance of the planet Mercury is equal to 574.1 seconds of arc per century,
when the newtonian gravitational theory gives 531.6. Urbain Le Verrier tried to solve the anomaly (574.1-531.6=42.5) by "adding" a new planet (Vulcain) to the solar system,
but at last it was explained by Albert Einstein with its General Theory of Relativity (1915).
See some related pictures (possibly including this one):
(CMAP28 WWW site: this page was created on 02/07/2026 and last updated on 02/08/2026 14:51:39 -CET-)