The largest exoplanet: GQ- Ruby B.
When the mysterious GQ- lupit -b was first discovered in 2005, astronomers didn't know how to explain it. Orbiting a young star at a distance of 2.5 times from the sun, the companion star looks like either a planet or a brown dwarf, but it is actually a small star. Subsequent observations did not clarify this puzzle, but the best estimate shows that the radius of GQ- Lupib is about 3.5 times that of Jupiter, which means that if it is an exoplanet, it will be the largest planet discovered so far.
The biggest star: UY Scuti
UY- Skouti is a very large star with a radius of about 1700 times that of the sun, and it is the largest known star in the universe. If someone puts martial arts? Scooter is placed in the center of the solar system and its edge will extend beyond Jupiter's orbit. The gas and dust flowing from this star will extend further beyond Pluto's orbit, about 400 times the distance between the earth and the sun.
The largest nebula: the tarantula nebula
The Tarantula Nebula is the largest known nebula and the most active star-forming region near our Milky Way, with the longest span exceeding 1800 light years. Also called 30 Doraemon, it is located in large magellanic cloud, which is1.700 million light years away from the earth. The Magellanic Cloud is a small satellite galaxies revolving around our Milky Way galaxy. This tarantula is not a deadly arachnid, but a star garden? In its beautiful folds of gas and dust, young stars are being born.
The greatest emptiness: Eli Dahners's super emptiness.
In 2004, astronomers noticed a huge blank area on the map drawn by NASA's wilkinson microwave anisotropy probe (WMAP), which carefully scanned the cosmic microwave background or the radiation left by the Big Bang. According to Vice, this star with a diameter of1800 million light-years is surprisingly lacking in stars, gas, dust and even dark matter. Although they have seen the previous holes, researchers are still puzzled by the size and scale of this formation.
The largest galaxy: IC 1 10 1.
Our Milky Way galaxy is about 654.38 million light years wide, but this is quite average for a spiral galaxy. In contrast, the largest known galaxy is called IC11kloc-0/,which is 50 times larger than our milky way and has a mass of about 2000 times. The length of IC 1 10 1 is impressive, reaching 5.5 million light years. It is so large that if placed in the present position of the Milky Way, its edge will pass through Andromeda, our nearest neighbor.
Maximum black hole: TON 6 18
Supermassive black holes are thought to lurk in the center of each galaxy, and their clock quality is millions of times that of the sun. But we can find that the largest known black hole provides energy for distant quasars? Huge objects in the early universe emit a lot of radiation. According to one theory, this is called? Ton 6 18？ The mass of the sun is estimated to be 66 billion suns.
The biggest galaxy farts: Fermi bubbles
In 20 10, astronomers used Fermi space telescope to discover the huge structure in the Milky Way. These huge water droplets, which can only be seen in light waves with specific wavelengths, are as high as 25,000 light years (a quarter of the width of the Milky Way). Researchers believe that these bubbles are the result of an ancient feeding frenzy experienced by the black hole in the center of our galaxy, which led to a huge energy explosion.
Maximum single object: original cluster SPT2349-56
When the universe is only one tenth of its present age, 14 galaxies began to collide together, forming the largest known gravitational constraint cosmic object-protogalaxy cluster SPT2349-56. Squeezed together in a space only three times the size of the Milky Way, this huge merger will eventually merge into a galaxy with the mass of the sun 10 trillion times. Additional observations show that there are about 50 additional galaxies around this structure, which will form a huge object called a cluster of galaxies, many of which surround each other.
The largest galaxy cluster: Shapley supercluster
Astronomer Harlow? Shapley discovered a huge galaxy cluster in 1930s, and now it is named after him. According to the introduction of the European Space Agency, the shapley supercluster contains more than 8,000 galaxies, the mass of which is 654.38 billion times that of the sun, and it is the largest structure in the local universe.
The largest supercluster: Ranjak supercluster.
Our galaxy is only a small part of Ranjak's huge galaxy cluster. Although it has no formal boundary, astronomers estimate that it contains about 654.38+million galaxies, with a total mass of about 654.38+billion times that of the sun and a span of more than 520 million light years.
The largest quasar collection: the huge LQG
Superbright objects driven by distant black holes called quasars are already very large. But sometimes quasars can gather together, and the largest one is imagined as a huge LQG (representing a huge quasar group). According to the Atlantic Monthly, this huge cosmic collection contains 73 quasars and the sun, with an estimated mass of 6 1 trillion (that is, 1 8 zeros after1), and its maximum span is considered to be 4 billion light years.
The biggest thing in the universe: Hercules, the Great Wall of Northern Lights.
By mapping the location of gamma-ray bursts, astronomers discovered what is generally considered to be the largest known entity in the universe: the Great Wall of Hercules. This celestial body is/kloc-0.00 billion light years in diameter and may contain billions of galaxies. The Great Wall was first discovered on 20 13. The investigation at that time showed that gamma rays were particularly concentrated in the direction of Wuxian and Beiguan constellations, which were 10 billion light years away.