UFO. Netherlands

Our brain, based on the experience of perception, takes the characteristic of approximation / removal of parameters depicted object for real movement. The illusion may work on circular objects, if they caused the picture imitating the play of light and shadow when rotating a round, flat object. At the same time, if you focus on a single site, the illusion of rotation on it immediately disappears.

This principle works not only when moving the head, but the motion of the person, if the picture of such a principle is found in the elements of the landscape.

The brightest heavenly bodies in the sky are Venus, Jupiter, and sometimes Mars and, of course, the Moon.

Venus is the bright yellow of the evening or morning star, shining in the sky on the background of evening or dawn. Maximum brightness of Venus can reach up to 4.3 m, and she is the third brightness of the sun in earth's sky after the sun and the moon. It so well reflects the light of the Sun that it is relatively easy to see and day, especially if you know the location. It manifests itself in the form of tiny blinking white dots.

When the objects are out of focus, their silhouettes blurred and poorly recognizable. They can look like dark or colored translucent stain. This is often the cobwebs, spiders, insects in front of the camera.

Ordinary satellites, which often look like single, not very bright luminous dots moving smoothly in the night sky, are quite often mistaken for UFOs. After the Starlink satellites (near-Earth satellite systems developed by SpaceX, in order to create a cheap and high-performance satellite Internet communication channel and technical transmitters for receiving and transmitting signals from earth and orbit) were launched, it became possible to observe groups of satellites (up to 60 pieces) flying one after another.