Most Amazing Exoplanets
Image credit: NASA/ESA/G. Bacon
The word ‘exoplanet’ relates to any planet which is outside of our solar system. At last calculation, we have detected 3,538 exoplanets. Among thousands of exoplanets planets we know about, few of them are extremely weird matched to what we are used to observe in our solar system. Here are few exoplanets with very exceptional features:
The best surprising point about Kepler-78b is that it shouldn’t even be real, rendering to our present information of planetary development. It is tremendously close to its star at only 550,000 miles i.e. 900,000 kilometers. As a contrast, Mercury only gets within 28.5 million miles of the sun in the closest point of its orbit. With the current distance of Kepler-78b, that would mean it formed inside the star, which is unbearable according to our current knowledge.
Kepler-78b itself is only faintly larger than Earth, however surface environments are obviously different. The temperature on the surface is expected to be 4300° F i.e. 2400° C, which is approximately nine times the temperature on Venus. Awkwardly for Kepler-78b, it is possible that the star’s gravitational attraction will slowly bring the planet closer and totally evaporate it in the next 3 billion years.
This exoplanet is aggressively getting towed apart by its parental star, much to the amusement of stargazers who can watch the process unfold. So much material has been dragged away from WASP-12b, it has been dragged into an oblong football nature. Astrophysicists have predicted that WASP-12b has approximately 10 million more years till it is totally pulled apart by its parent star.
WASP-12b is defined as a “hot Jupiter” as it is a gas planet and it is around 40 percent larger than Jupiter. It is now so close to its star that it only takes 1.1 Earth days to complete a full orbit around its parent star. It is located approximately 800 light years away in the Auriga constellation.
TrES-2b has been named the “dark planet” as it does not reflect light. If we were able to view it directly, it would expected just look like a coal-black sphere of gas. At 1800°F (1000°C) the planet is way too hot for clouds to form, which would help mirror the star’s light. Other darker planets only return about 10% of the star’s light, but TrES-2b only reflects about 1%, making it the darkest planet ever revealed.
Scientists aren’t quite sure about the reason behind its darkness. The best supposition is that the majority of the planet’s configuration is somewhat like sodium or potassium which absorbs light. This dark Planet is about 750 light years away in the Draco constellation.
55 Cancri e
55 Cancri e is double the size of Earth but is approximately 8 times more gigantic and twice as dense. Last fall, scientists comprehended that the mass of the planet was mainly carbon. Due to the surface temperature of 2700°C and pressure it very well could have shaped diamond. It is so close to its parent star it takes a mere 18 hours to complete a full orbit around its parent star.
55 Cancri e is only around 40 light-years away from Earth in the Cancer constellation. Because of extreme circumstances, astrophysicists don’t consider that 55 Cancri e has an atmosphere, making it a poor candidate for the chance for life. Though, it is close enough for stargazers to use it to test theories about planetary formation.
TrES-4 is located 1,400 lightyears away in the Hercules constellation, it is the largest exoplanet astronomers discovered so far. However it is over 1.7 times the size of Jupiter, it has a tremendously low density and is characterized as a “puffy” planet. The planet’s thickness is about the same as cork, which arose as quite a surprise. Astrophysicists point this to dangerous heat of 1,260° C due to its nearness to the star. At only 7.2 million kilometers away from its star, TrES-4 is able to complete an orbit in three Earth days.
Gliese 436 b
Gliese436 b is located 30 lightyears away in the constellation Leo, it is a planet that is around as massive as Neptune. The planet also occurs to be enclosed in burning ice - however the ice isn’t whatsoever like what we’re used to. The thrilling pressure of the planet powers the water to stay in solid form, even yet the temperature exceeds 300° C. The external layer of the solid water is superheated. Water has over 10 solid states, not counting common ice.
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Most Amazing Exoplanets Reviewed by Umer Abrar on 5/04/2014 Rating: