Gliese 1214 b/GJ1214b 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. 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. The star is about one-fifth the radius of the Sun with a surface temperature estimated to be 3 000 K (2 730 °C; 4 940 °F). 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. 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. Discovered: 2009 On Earth, the scale height is about 6 miles (10 kilometers), while on Gliese 1214 b it is three times deeper, according to Narita. Not only does this planet have a bone-crushing pressures with scorching hot temperatures, it has a deadly, dense ocean at the bottom of its atmosphere. It is also the first super-Earth around which an atmosphere has been found. As such, if there’s water on the surface or even near the surface, it’s likely been vaporized. [3] It is located at a distance of approximately 47 light years from Earth. Now imagine the situation on Gliese 1214 b. Gliese 1214 b on the background of the parent star. The star is about one-fifth the radius of the Sun with a surface temperature estimated to be 3000 K (2730 °C; 4940 °F). 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. It is probably at least three billion years old and a member of the old disk. 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 … At its surface, Venus is 737 K, 462 °C, 867 °F. Unlike terrestrial planets, the super-Earth doesn’t have a solid surface, making the height of the atmosphere difficult to define. New observations from NASA's Hubble Space Telescope show that it is a waterworld enshrouded by a thick, steamy atmosphere. [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. It helps that the planet is likely about the temperature of Mercury. Researchers believe that the surface of the planet is warming up at 200 ° C. 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. When you look at Earth from space, oceans dominate it. Science, Health and Environmental Reporting Program GJ 1214 b juga dikenal sebagai Gliese 1214 b adalah bumi super luar surya yang mengorbit bintang GJ 1214.Planet ini ditemukan pada bulan November tahun 2009 dan berjarak sekitar 40 tahun cahaya dari Bumi.GJ 1214 b terletak di rasi bintang Ophiuchus dan merupakan planet luar surya kedua yang memiliki massa dan jari-jari lebih kecil daripada raksasa gas di Tata Surya. in the Arthur L. Carter Journalism Institute at New York University. Ice VII has actually been found to naturally occur in diamonds, and some scientists think it exists deep within Jupiter’s moon Europa. Theme by Garrett Gardner. HD 80606 b [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. Multi-color Transit Photometry of GJ 1214b through BJHK s Bands and a Long-term Monitoring of the Stellar Variability of GJ 1214. Go even deeper, and even with temperatures hot enough to melt metal you might find yourself in frozen clouds of ice X. 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. (Scientists call this ice Ih.) Discovered in 2009, the planet is about 2.7 times Earth’s diameter and is almost 7 … As of 2015, GJ 1214 b is the most likely known candidate for being an ocean planet. But what happens if GJ 1214 b is an ocean world — and if you start going deeper down? “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. Like other ocean planets, it has a surface that is extremely sensitive to the touch of anything, especially asteroids, which means it hates them. According to NASA, there exists probable evidence of a great number of extraterrestrial oceans, which means there is a vast potential for…. No, these ocean worlds are more like very large comets, where the majority of the planet’s mass is water. Exotic Waters This image shows an artist's view of the planet Gliese 1214 b in front of its host star. 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. 2. GJ 1214b is classified as a water-world, and is the only example of such a planet yet to be discovered. Its luminosity is only 0.33% that of the Sun. GJ 1214b is 6 to 7 times larger than our earth. On an ocean world like some believe GJ 1214 b to be, if you dive down to where pressures are high enough — say, 100,000 times Earth’s atmosphere — you might find yourself surrounded by unearthly cuboids of ice VII (pronounced “ice-seven”). Earth is really a world of rock and metal that just happens to be painted over with a thin coat of 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. Credit: NASA, ESA, and D. Aguilar (Harvard-Smithsonian Center for Astrophysics). There’s a few known planets that could be ocean worlds, but today we’re looking at a single one: GJ 1214 b, orbiting a red dwarf within the Sun’s local neighborhood. ApJ 773, 144; … "At the bottom of the water-rich atmosphere of Gliese 1214 b, water should be a super-critical fluid." [8] It also shows a 1% intrinsic variability in the near-infrared probably caused by stellar spots. For that reason, scientists have nicknamed the planet "the waterworld". GJ 1214b, also known as Gliese 1214b, is 42 light years from Earth and was discovered in November 2009. There’s a reason Earth has been called “blue marble” and “pale blue dot.”. Detailed information on planet GJ 1214 b orbiting around star GJ 1214. Mass: ~6.2 Earth masses 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. At these high temperatures and high pressures, water cannot exist, on the surface, as a liquid. Gliese 1214 is a dim M4.5 red dwarf in the constellation Ophiuchus with an apparent magnitude of 14.7. 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. 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 … The thick atmosphere exerts an incredible amount of pressure on Gliese 1214b’s surface. These aren’t like Earth. 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. 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. There are many contenders stands out for this Strangest Exoplanets award. The temperature of the stellar corona is estimated to be about 3.5×106 K.[10], In mid-December 2009, a team of Harvard-Smithsonian astronomers announced the discovery of a companion extrasolar planet, Gliese 1214 b, potentially composed largely of water and having the mass and diameter of a super-Earth. The planet is literally an egg cooker! You might be used to thinking of ice as the hexagon-shaped crystals that form on especially chilly days on Earth. Your email address will not be published. GJ 1214 b is a “super-Earth,” a planet that’s bigger than Earth but likely still solid and terrestrial, rather than a gas giant. A project of the [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. Carter Journalism Institute at New York University Hubble Space Telescope show that it is also the super-Earth. Entering a much stranger world: a world of exotic ice timing variations was negative of such a planet to... What happens if GJ 1214 b orbiting around star GJ 1214 b orbiting around star GJ b! A Long-term Monitoring of the Sun planet ’ s mass is water different kind ocean! 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