"Mr." and "Ms." Universe
The largest galaxy, the oldest extrasolar planet, the massive black hole - in the universe have their "Mister" and "miss" of the universe.
The largest constellation of
The daughter of Typhon and Echidna, it is snake-like monster, defeated by Hercules, it is also water snakes, she Lernaean Hydra - the largest constellation. You see it fully possible, however, only in the southern hemisphere (or close to it), is particularly well discernible Hydra in February and March. The brightest star of the constellation - Alphard, which is 40 times larger than the Sun, sometimes also called the Heart of Hydra.
Area constellation occupies 3, 16% of the total area of the sky. In fact it is a long winding strip of relatively faint stars, and indeed resembles a snake (unlike other constellations whose names guess the "contents" can only people with imagination of the ancient Greeks).
The biggest black hole
The black hole - is not really a hole, but something (the region of space-time), which has a large mass (and hence the enormous gravity), which is to leave it can not even light. Because of this, black holes do not emit, they are not visible, they are found only on circumstantial evidence - the gravitational variations near these facilities, as well as predicted by calculations of Einstein's general theory of relativity. The most massive black holes found in the centers of galaxies. With a gigantic mass and density, they "suck" at all the nearest objects: stars, planets and dust clouds. The most massive black hole known to date, it is considered a hole in the center of the giant elliptical galaxy NGC4889. It is the brightest galaxy of all that is in the constellation Coma Berenices. The "weight" of a black hole at its center is about 21 billion suns. But the mass of the black hole at the center of our Galaxy by three orders of magnitude smaller - "only" 4, 3 million times greater than the mass of the sun.
The largest galaxy
It is a modest name - the IC 1101 and indiscreet size - 6 million light-years across. For comparison, our own Milky Way is less than 60 times (its diameter is only 100,000 light years) and 2000 times better. If this giant was on the site of our galaxy, that would include not only the Milky Way, but also the closest to us (from large galaxies) Andromeda, neighbors - the Large and Small Magellanic Clouds and the Triangulum Galaxy.
Fortunately, this supergiant elliptical galaxy is 1, 04 billion light-years away in the constellation Virgo, so the absorption of it our world is not threatened. Though so this krupnyachok and formed - on the basis of computer "Hunger Games" ruthlessly "devouring" the smaller nearby galaxies. It was open for a long time - as much as in 1790 - the famous British astronomer William Herschel.
The oldest planet
Methuselah. Cold, dark. And it is very old. The official name, as usual, boring - PSR B1620-26 b, informal - Methuselah - captures the essence, though not fully. Bible old man is known to have lived 969 years. Exoplanet, according to scientists, about 12, 7 billion years, ie it is only 1 billion years younger than the universe itself (which, as you know, 13, 7 billion years). It is the oldest planet known to date. Is it any wonder that a pair of stars, around which it revolves, turned into a white dwarf and a pulsar, respectively (the stars have their own evolution). The planet is located in 12, 4 light-years from us - in the constellation Scorpius, and quite "weighty" - 2, 5 Jupiter mass. It revolves at a distance of a little more distant than the distance of Uranus from our sun. Year Methuselah takes a hundred times longer than the earth. After some time, the measured life will be broken - the system is slowly but surely drifting into the center of a star cluster M4 with a huge number of stars (because of the possible impact of such crowding star systems with each other). It seems that the long life of Methuselah still destined to break off.
On the other exoplanets read our review. At one year lasts just 18 hours, on the other constantly occur ice storm, and the third spits gas. Do not go, adults on exoplanets, look better from afar.
The most distant galaxy
Where is the edge of the world? Age of the Universe - 13, 7 billion years old, but she is known, is constantly expanding, so the most distant objects all the time, "run away" from us and distance increase. Today, from us to the "edge of the universe" about 46 billion light years. It was at such a distance is the so-called cosmic microwave background radiation left over after the Big Bang. Probably, at such distances and may be the most distant objects. But we do not see them. Until. Look at them will help James Webb telescope, which will be launched into orbit in 2018. In the meantime, the most distant object we have considered from the galaxy UDFj-39546284, located at 13, 42 billion light-years away. If the universe is not expanding, neighborhood UDFj-39546284 rightfully could be called the official end of the world, because there was this galaxy a long time ago - in just 380 million years after the Big Bang (on space standards, it's a bit).
UDFj-39546284 consists of blue stars, it is very small (2,000 light-years in diameter) and is located in the constellation Fornax.