La terre ne tourne pas autour du soleil

[Guest MARCEL]

Non,il ne sait pas de ce qu'il parle le mec,c'est le centre de masse et tout objet céleste dans l'univers orbite un centre de masse,la terre est la lune orbite le centre de masse terre-lune et la paire terre-lune orbite le centre de masse du système solaire et le système solaire orbite le centre de masse de la galaxie et la galaxie fait partie d'un cluster de plusieurs galaxies(affectée par leur gravité) ainsi de suite ...

 

 

 

 

 

Tout à fait d'accord.

Qu'est-ce quelle a à voir la religion

ds la rotation de la terre?C'est une

ignorante, point.

[Guest Serena1]

Non,il ne sait pas de ce qu'il parle le mec,c'est le centre de masse et tout objet céleste dans l'univers orbite un centre de masse,la terre est la lune orbite le centre de masse terre-lune et la paire terre-lune orbite le centre de masse du système solaire et le système solaire orbite le centre de masse de la galaxie et la galaxie fait partie d'un cluster de plusieurs galaxies(affectée par leur gravité) ainsi de suite ...

 

 

The Earth Doesn’t Actually Orbit The Sun?

 

Let us first start by saying that for all practical purposes, what you were taught isn’t entirely wrong. The Earth does in fact orbit the sun. In the strictest sense, however, it doesn’t.

 

“But how can this be?”, you might ask. It’s been tested, verified and is common knowledge. It’s one of the first science lessons taught to kids in in grade school. How can our fundamental understanding of the solar system be wrong? Well, it’s actually due to a technicality.

 

Everything that has mass has gravity. The more massive something is, the more gravity it has. The sun and other planets all each have their own “gravity well” which interact and pull on one another. Because there are several different gravity wells interacting with each other, it means that everything in an orbital system (like our solar system) orbit the center of mass of the system. This center of mass is called the barycenter. The Earth, the sun and everything else in our solar system actually orbit this barycenter – not the sun.

 

 

Where Is The Barycenter?

In a single star system like ours, most of the time (but not always), the barycenter is located somewhere within the star itself. However, most barycenters continuously change as massive objects (like planets) orbit a star.

 

If an unusual alignment happens where a large percentage of mass is on one side of the star, the barycenter can exist outside of the star’s radius. In cases of two star systems, the barycenter will be located between the two stars. If the stars aren’t of the same mass, it will be closer to the heavier, or more massive one.