Remember a few months ago released "Interstellar" What? A story of people on earth to explore outer space, citing a public party feelings, industry and science fiction fan party cerebral hole wide open. Cave brain may not only exist in the movies, recently, the Russian Federal Space Agency released a series of animated simulation, which vividly depicts when the Sun and Moon were different stars and planets alternative Earth skies will be presented in different scenarios . The sun and moon have interdependence 4.5 billion years of the Earth, imagine if the sun or the moon is replaced by other planets, Earth's sky, what will become.
Sirius, is about 8.6 light-years from Earth, about twice the thickness of the atmosphere of the sun, which is located inside the constellation Canis Major. If the sun is an alternative to the Earth's horizon will be in a blue mist.
Alpha Centauri (Alpha Centauri) is visible from Earth and the nearest star, about 430 light-years, equivalent to 30 times the Earth-Sun distance. If the alternate sun star, then the sky will appear in a "binary system", because along with the stellar presence of a star also called Alpha Centauri (Alpha Centauri B), the rotation period is 80 years, two the average distance between stars in about 11 astronomical units, the equivalent of the distance between the sun and Uranus, that is 102.3 million miles.
The third is red stars Arcturus (Arcturus), is the fourth brightest star in the sky. In addition, Vega (Vega) and although the shape is similar to the sun, but the light is brighter, higher temperatures. There is a star called the North Star (Polaris), the Big Dipper in the small top.
Red Arcturus (Arcturus), is the fourth brightest star in the sky.
Another group of animation is different planets instead of the moon, including Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and the Earth itself. Among them, the space occupied by Jupiter and Saturn Sky visually most.
The left is Mars, the right is the Earth.
1738 km radius of the moon is only about 384,000 kilometers from Earth. Other than the radius of the planet's many large moon, Mars, for example, is twice the radius of the moon, about 3397 Uranus is 25 times the radius of the moon, which is about 25,559 Jupiter's radius is larger, about 71,490 km. Photograph Saturn analog screen.
If these planets replaced the moon, their satellites may collide with Earth. For example, Saturn's moons - Dione track distance of about 377,000 kilometers. These planets may be because gravity will affect the atmosphere of the Earth's surface stripping, and even caused a huge tsunami and volcanic eruptions. The picture shows Uranus.
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