Two bodies

The green lines are the force vectors, the yellow lines are the velocity vectors.

The small red cross is the Center of mass.

Planet A is two times heavier then the Planet B.

Elliptic path of a light body around a heavy one

The green lines are the force vectors, and the red lines are the velocity vectors of the light body at different time.

The length of the vectors shows the magnitude of the force and speed.

The gray ellipse is the trail of the light body.

The yellow spot at the focus of the ellipse is the heavy body.

Earth & Moon binary system

The proportion is real.

As we can see, the Center of mass is in the body of Earth.

Escape velocity

The green trailed rockets have escape velocity.

The red trailed have 80% of escape velocity,

these slow rockets will be back to the Earth.

Planet with some satellites

The trail length is shows the speed of the satellite.

Globular cluster with 300 stars

The distribution is normal (Gauss), as in the real cluster.

Made by the Group Maker tool.

Text shape

This 106 bodies are shape the text of Gravity.

Made by the Group Maker tool.

The colors are set by the Properties of body selected dialog box.

A binary system

The common Center of mass is sticked to the screen.

Some path

Light and dark green bodies and its green Center of mass.

Brown and magenta bodies and its red Center of mass, what is stick to the screen.

See the complex path of the green Center of mass.

Some interesting loop

The red Center of mass is sticked to the screen.

Ellipsoid paths in an extreme planetary system

See the dark green and gray bodies in the left side, what orbit around each other.

Collapsing globular cluster with 300 stars

The starting velocity is zero for every stars, just the gravitation attraction moves the bodies. Some star leave the cluster, because the computing precision not enough in this example.

Distended globular cluster with 300 stars

The starting velocity is same length, but different directions for every stars. The masses of the stars are very small, to keep their linear steady motion. We can see a distended donut.

Earth, Moon (& Sun)

The Moon is orbiting around the Earth. The Sun is out of the screen and the Earth is stick to the screen.