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The most distant object in the solar system discovered

22.12.2018

A team of astronomers from the Carnegie Institution, the University of Hawaii and Northern Arizona University (USA) has discovered the most distant body ever observed in our solar system. The body is a dwarf planet, more than 100 times the distance between the Earth and the Sun, according to the Carnegie Institution.

The object was named 2018 VG18 and nicknamed "Farout" ("distant" - from English). Its "home" is located at a distance from the Sun of about 120 astronomical units (AU, AU), where 1 AU. defined as the distance between the earth and the sun. The second most distant observable object in the solar system is the dwarf planet Eris: its "coordinates" are 96 AU. In size, it is considered the second after Pluto, which, by the way, is located at a distance of about 34 AU.

Now scientists cannot say exactly which orbit 2018 VG18 is moving in. There is only a guess: because the dwarf planet is so far away, it rotates very slowly - and it probably takes more than 1000 years to complete one revolution around the Sun.

The first images of the most distant object in the solar system were taken on November 10 this year by the Japanese 8-meter Subaru telescope, located on top of Mauna Kea in Hawaii. Farout was seen for the second time in early December with the Magellanic Telescope at the Las Campanas Observatory (Chile).

2018 VG18 was discovered during scientists' search for extremely distant objects in the solar system - including "Planet X", sometimes also called "Planet 9". In October, the same research team announced that it had found another distant solar system object, 2015 TG387, nicknamed "Goblin". He got this nickname because he was first seen on Halloween. The distance from the Sun to Goblin is about 80 AU.

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Stonehenge creates sound mirages 29.02.2012

Stephen Waller, a researcher from the United States with a rare specialization in archeoacoustics, examined the acoustics of the famous Stonehenge, built in southern England more than five thousand years ago, and found out that from an acoustic point of view, this place is very difficult - the giant stones that make up Stonehenge are capable of creating amazing sound illusions, which can even be called acoustic mirages.

If two musicians are placed in the center of this structure and forced to play the trumpet, then the observer, bypassing them, will hear almost silence in certain places - the sound waves, reflected from the stones, will suppress each other in these places and the trumpet voices will almost subside.

Waller, on this basis, put forward a rather controversial hypothesis that, in fact, this was exactly what the first builders of this "place" intended. As confirmation, he cites the fact that stone circles in ancient Britain were called that way - "pipe stones", piper stones. He also talks about an ancient British legend, according to which Stonehenge arose from girls who were called by two magic pipes to dance in the field, and then turned them into stone pillars. Waller, thank God, does not claim that the myth is true, but hints that tricks with pipes were not dispensed with from the very beginning. He is sure that from the earliest days of Stonehenge, its visitors have been influenced by its acoustic mirages during their religious ceremonies and considered them to be a mystical sound creation of a stone circle.

The volunteers invited by him went out to the center of the "magic" circle blindfolded, listened to two trumpeters, and, having got into the "dead" sound zone, they later told that between them and the trumpeters they seemed to have an obstacle (which, of course, was not), a circular obstacle with pillars and arches, similar to a miniature Stonehenge.

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