6 strangest planets in our universe
Miscellaneous / / May 19, 2022
Among them are a world of glass, a superfast ball orbiting a pulsar, and the core of a former gas giant.
1. Planet of Ice and Fire
The name of this planet is Saffar, and it is also called Upsilon Andromeda b. It is a gas giant that orbits a sun-like star in the constellation Andromeda. Moreover, it is located so close to its luminary that a year passes there in five days.
Saffar does not rotate around its axis, so on one half of it there is eternal day, on the other - endless night. In the world the temperature on the planet reachesDistant Planet is Half Fire, Half Ice / Space 1650 °C, and there flySpectrum and atmosphere models of irradiated transiting giant planets | Proceedings of the International Astronomical Union / Cambridge Core clouds of hot oxides of vanadium and titanium, as well as gaseous silicates and iron. On the dark side - frost under −230 °C. The planet is bluish in color and 1.36 times the size of our Jupiter.
2. glass blower
This unnamed celestial body with the index HD 189733b is located 64.5 light years from the solar system in the constellation Chanterelles. Planet
appliesELODIE metallicity-biased search for transiting Hot Jupiters / Astronomy & Astrophysics (A&A) to the class of so-called "hot Jupiters». It is made up of hydrogen and has a distinct blue color.The peculiarity of this world is a huge amount of silicates in the chemical composition of the atmosphere. The temperature here does not fall below 700 ° C, and the wind speed reaches 8,700 kilometers per hour. Because of this, silicates turn into hot glass, the jets of which continuously rush around the planet along with hurricanes. Simply put, on HD 189733b there is always a horizontal rainRains of Terror on Exoplanet HD 189733b / NASA from molten glass.
3. Chthonic world
HD 189733b is constantly losing its atmosphere. Due to the monstrous temperatures, its gas quickly evaporates into space, and the planet is slowly but surely losing mass. This celestial body has relatives that have already lost their atmosphere - gas giants, from which only one naked core remains.
Such objects calledVery high-density planets: a possible remnant of gas giants / Philosophical Transactions of the Royal Society chthonic (which means "underground"). One of representativesExoplanet-catalog, TOI-849 b / Exoplanet Exploration of this class is TOI 849b, a huge planet 700 light years away. She is the size of Neptune, but, unlike it, has almost no atmosphere.
TOI 849b was once a gas giant larger than Jupiter, but the star's heat boiled it down to its very heart. As a result from the planet remainedA remnant planetary core in the hot-Neptune desert / Nature only a rocky stump, which, nevertheless, is 39 times heavier than our Earth.
4. Yula
PSR J1719-14b is a planet composed primarily of crystalline carbon. This means that its depths can theoretically contain a huge diamondAstronomers discover planet made of diamond / Reuters. But science has yet to confirm or disprove this.
But what is known for sure: PSR J1719-14b is spinning around a huge pulsar just incredibly fast. This world doesTransformation of a Star into a Planet in a Millisecond Pulsar Binary / Science one revolution around its star in 2.2 hours. The pulsar itself has time to make 10,000 revolutions per minute. This star is one and a half times the mass of the Sun, and its diameter is only 20 kilometers.
5. primeval planet
PSR B1620-26b is informally referred to as "Methuselah” or “Planet of Genesis”. She is revolvesOldest Known Planet Identified / NASA around two stars - a pulsar and a white dwarf. It would seem that this ordinary celestial body 2.6 times larger than Jupiter does not differ from other gas giants.
However, there is one thing: Methuselah is incredibly old. This planet is about 12.7 billion years old. This means that she appearedOldest Known Planet Identified / NASA about a billion years after the birth of the universe. By comparison, our solar system is only 4.6 billion years old.
6. cherry giant
Gliese 504b is a Jupiter-like planet about 57.3 light-years away. She is revolvesDirect Imaging of a Cold Jovian ExoplanetIn Orbit Around A Sun-like Star GJ 504 / IOPscience around a sun-like star called 59 Virgo.
The gas giant boast ofAstronomers Image Lowest-mass Exoplanet Around a Sun-like Star | NASA a charming color of ripe cherries, which astronomers have not observed on other planets. Scientists are still not sure why it is.
Gliese 504b is also strange because it spins too far from its star, which forces NASA staff to rebuild their theoretical models that describe the formation of gas giants.
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Cover: ESA / Hubble / NASA's Goddard Space Flight Center / S. Wiessinger / Vadim Sadovski / Shutterstock / Lifehacker
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