Theme by Garrett Gardner. But by playing with pressure, you can actually create at least 18 phases of ice, many with alien crystal shapes: cubes, pyramids, and some that don’t even form crystals at all but instead amorphous blobs. Scientists figure the top of Gliese 1132b’s atmosphere is around 533 K, 260 °Centigrade, 500 °Fahrenheit; probably hotter at the surface. [3] It is located at a distance of approximately 47 light years from Earth. Gliese 1214 is a dim M4.5[4] red dwarf in the constellation Ophiuchus with an apparent magnitude of 14.7. Gliese 1132 b is too close to its star to be like Star Trek’s Class M planets — which generally looked like southern California from the surface. [11] The star is about one-fifth the radius of the Sun[12] with a surface temperature estimated to be 3000 K (2730 °C; 4940 °F). [10], Coordinates: 17h 15m 18.94s, +4° 57′ 49.7″, "Identification of a Constellation From a Position", Centre de données astronomiques de Strasbourg, "Astronomers Find Super-Earth Using Amateur, Off-the-Shelf Technology", Astronomers Find World with Thick, Inhospitable Atmosphere and an Icy Heart, https://en.wikipedia.org/w/index.php?title=Gliese_1214&oldid=982517967, Planetary systems with one confirmed planet, Creative Commons Attribution-ShareAlike License, This page was last edited on 8 October 2020, at 17:10. Living UFOs: Our Sky Is Their Ocean. Gliese 1214 b (thường được rút ngắn thành GJ 1214 b aka Ocean Planet) là một ngoại hành tinh quay quanh ngôi sao Gliese 1214, và được phát hiện vào tháng 12 năm 2009. [3] Although GJ 1214 has a low to moderate level of magnetic activity, it does undergo flares and is a source of X-ray emission with a base luminosity of 7.4×1025 erg s−1. There’s a reason Earth has been called “blue marble” and “pale blue dot.”. The exoplanet, orbiting a small star only 40 light-years … Researchers believe that the surface of the planet is warming up at 200 ° C. Like other ocean planets, it has a surface that is extremely sensitive to the touch of anything, especially asteroids, which means it hates them. [8][12], Discovered by the MEarth project and investigated further by the HARPS spectrograph on ESO’s 3.6-metre telescope at La Silla, GJ 1214 b is the second super-Earth exoplanet for which astronomers have determined the mass and radius, giving vital clues about its structure. While this was cooler than the hot Jupiters that utterly dominated the lists of known exoplanets in 2009, it is still well more than warm enough to boil water. GJ 1214b is 6 to 7 times larger than our earth. A search for additional planets using transit timing variations was negative. Your email address will not be published. As of 2012, "the given data does not allow us to conclude that there is a [second] planet in the mass range 0.1–5 Earth-masses and the period range 0.76–1.23 or 1.91–3.18 days. [3] The star is rotating slowly, with a period that is most likely an integer multiple of 53 days. Detailed information on planet GJ 1214 b orbiting around star GJ 1214. It was possibly a gaseous giant, but as it approached the Gliese 876, its mass ejections expelled its layers of gas, and it is still hot today, as the volcanic activities on its surface are visible. Discovered in 2009, the planet is about 2.7 times Earth’s diameter and is almost 7 … Discovered by the MEarth project and investigated further by the HARPS spectrograph on ESO’s 3.6-metre telescope at La Silla, GJ1214b is the second super-Earth exoplanet for which astronomers have determined the mass and radius, giving vital clues about its structure. World's most comprehensive interactive database of extrasolar planets updated daily since 1995. in the Arthur L. Carter Journalism Institute at New York University. Only a fraction of a percentage of Earth’s mass is actually water. Gliese 1214 b (Often shortened to GJ 1214 b) is an exoplanet that orbits the star Gliese 1214, and was discovered in December 2009. Its entire surface is a gigantic ocean, except in the poles, where the extreme cold temperatures made huge ice islands, some of them with frozen lakes and rivers. This image shows an artist's view of the planet Gliese 1214 b in front of its host star. Required fields are marked *, Distinguished Writer in Residence, New York University. “However, we may not be able to find hot ‘ice’ — high pressure-ices — inside of Gliese 1214 b.” Originally discovered in by the MEarth Project, which tracks more than 2,000 low-mass stars in search of planets, Gliese 1214 b was confirmed by the European Space Agency’s High Accuracy Radial velocity Planet Searcher in Chile. It is also the first super-Earth around which an atmosphere has been found. [3], No transit-time variations have yet been found for this transit. It’s not certain what GJ 1214 b actually looks like, but some astronomers think the outside of the planet is dominated by a thick atmosphere composed of water vapor. The thick layer of Ice VII that covers the core Eventually, you’ll hit a thick layer of liquid water. Gliese 1214 b may be rich in water, but this definitely is not the kind of water you'd want to be drinking! Astronomers have now added one more to the list, and this one — a super-Earth dubbed Gliese 15Ab — ranks as one of the closest known exoplanets, circling its … Its parent star is 42 light-years from the Sun, in the constellation Ophiuchus. The star is about one-fifth the radius of the Sun with a surface temperature estimated to be 3000 K (2730 °C; 4940 °F). Its parent star is 48 light-years from the Sun, in the constellation Ophiuchus. Gliese 1214 b is a large exoplanet 42 light years from Earth, it is a giant terrestrial planet, with its surface theoretically totally covered by water, being an ocean planet. Six times as massive as Earth, Gliese 1214 b is less than three times as wide, falling between the Earth and the solar system's ice giants Uranus and Neptune in size. Gliese 1214 b/GJ1214b Now imagine the situation on Gliese 1214 b. Gliese 1214 b on the background of the parent star. Surface climate: Water is wet [12] Its luminosity is only 0.33% that of the Sun. For that reason, scientists have nicknamed the planet "the waterworld". It is also the first super-Earth around which an atmosphere has been found. The thick atmosphere exerts an incredible amount of pressure on Gliese 1214b’s surface. Even orbiting so close, Ross 128 b could thus have a surface temperature that averages about 269 degrees K, which sounds nasty until you realize that … Scienceline’s Guide to the Exoplanets: The Lonely Colossus, Scienceline’s Guide to the Exoplanets: The Temperate Shadow, Scienceline’s Guide to the Exoplanets: Anti-Earth, Scienceline’s Guide to the Exoplanets: Far Away, Science, Health and Environmental Reporting Program. As such, if there’s water on the surface or even near the surface, it’s likely been vaporized. Ice VII has actually been found to naturally occur in diamonds, and some scientists think it exists deep within Jupiter’s moon Europa. The planet is literally an egg cooker! Instead, atmospheric scientists introduce a concept called the scale height, a height determined by changes in the increase or decrease of atmospheric pressure by a set amount. This planet is usually called GJ 1214 for short, but the majority of the public refer to this... Gliese 1214 b is an exoplanet that orbits the star Gliese 1214. New Type of Alien Planet Is a Steamy 'Waterworld' GJ1214b, shown in this artist’s view, is a super-Earth orbiting a red dwarf star 40 light-years from Earth. This ocean planet has a small amount of rockey surface in its core. (Scientists call this ice Ih.) It helps that the planet is likely about the temperature of Mercury. But do not think that you are destined to be in the water world, where a dense layer of water covers a modest rocky core. If you were an extraterrestrial in a far distant star system looking back at the Earth with technology similar to ours, picking apart only the scantest details about distance from the Sun and surface temperature and atmospheric composition, you might reasonably think the entire planet is covered by water: that Earth is an ocean world. Habitability for humans: Not unless you like hot ice, In your childhood, you perhaps learned that about two-thirds of Earth’s surface is covered by water: not just the vast oceans, but ice caps and river systems and even the water vapor that dots the atmosphere in clouds. Science, Health and Environmental Reporting Program A project of the "At the bottom of the water-rich atmosphere of Gliese 1214 b, water should be a super-critical fluid." HD 80606 b GJ 1214 B is known for being composed almost entirely of water, totaling approximately 75% of its mass while the other 25% is rock. 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