[14], Media related to GJ 1214 b at Wikimedia Commons, Coordinates: 17h 15m 18.94s, +4° 57′ 49.7″, "Open Exoplanet Catalogue – Gliese 1214 b", "Mass–radius relationships for solid exoplanets", "10 Real Planets That Are Stranger Than Science Fiction", "Release 13-383 – NASA's Hubble Sees Cloudy Super-Worlds With Chance for More Clouds", "Astronomers Find Super-Earth Using Amateur, Off-the-Shelf Technology", Astronomers Find World with Thick, Inhospitable Atmosphere and an Icy Heart. After all, it is known that water is the source of the origin and evolution of living organisms. Follow. Like other ocean planets, it has a surface that is extremely sensitive to the touch of anything, especially asteroids, which means it hates them. As of 2017, GJ 1214 b is the most likely known candidate for being an ocean planet. The exoplanet of Gliese 1214b consists entirely of water, but is there life. Although Gliese … Because of the estimated old age of the planetary system and the calculated hydrodynamic escape rate of 9×105 kg s−1, scientists conclude that there has been a significant atmospheric loss during the lifetime of the planet and any current atmosphere cannot be primordial. [1], In December 2013, NASA reported that clouds may have been detected in the atmosphere of GJ 1214 b. Gliese 1214b (GJ 1214 b) is an exoplanet that orbits the star Gliese 1214 and was discovered in December 2009. This artist’s impression shows how Gliese 1214b may look as it transits its parent star. Astronomers from Japan using NAOJ’s Subaru Telescope have found that the extrasolar planet Gliese 1214b has a water-rich atmosphere. Through a comparison with theoretical models, the density in turn provides limited but highly useful information ab… The actual color of GJ 1214 b is not known yet. Gliese 1214 b. Astronomy Science ~ GJ 1214 b is a Super-Earth planet orbiting GJ 1214. Although they did not completely discount the possibility of a hydrogen-dominated atmosphere, the new results combined with findings from previous research suggest that Gliese 1214b is likely to have a water-rich atmosphere. Given the planet's mass and radius, its density can be calculated. FUN FACTS: -Gliese 1214 b is 42 light years from Earth -GJ1214b is classified as a water-world, and is the only example of such a planet yet to be discovered -The parent star is only 16% the mass of our Sun -Its low mass may suggest GJ1214b only has a small amount of rock in it Another possibility is that there may be a thick layer of high clouds, which absorbs the starlight. It is located 42 light years away in the constellation Ophiuchus. Gliese 1214 b[3] (often shortened to GJ 1214 b) is an exoplanet that orbits the star Gliese 1214, and was discovered in December 2009. The mass of the planet can be inferred from sensitive observations of the parent star's radial velocity, measured through small shifts in stellar spectral lines due to the Doppler effect. [1][14] Water planets could result from inward planetary migration and originate as protoplanets that formed from volatile ice-rich material beyond the snow-line but that never attained masses sufficient to accrete large amounts of H/He nebular gas. World's most comprehensive interactive database of extrasolar planets updated daily since 1995. Super-Earth Gliese 1214 b is located just 40 light-years outside our solar system and while it has water, it is thought to be uninhabitable The … Gliese 1214 b is located 40 light-years from the solar system in the constellation Ophiuchus and orbits its cooler, low-mass M-type star once every 38 hours, 70 times closer than Earth is to the sun. Stars in the Catalogue of Nearby Stars with numbers 1000-1294 are from the 1979 extension published by Gliese and Jahreiß - these should be designated with "GJ" not "Gliese". Beyond our solar system, a "super-earth" planet called Gliese 1214b was discovered. |. This artist’s impression shows how Gliese … Discovered in 2009 by the MEarth Project, this alien world is about 2.7 times Earth’s diameter and is almost 7 times as massive. And here are some interesting facts about the planet GJ 1214 b 1. Share. In December 2010, a study was published showing the spectrum to be largely featureless over the wavelength range of 750–1000 nm. Matter in a plasma state is a bit similar to a gas. It is located 42 light years away in the constellation Ophiuchus. This is the first super-Earth exoplanet to have had its atmosphere analysed. Gliese 1214 b is an exoplanet that orbits the red dwarf star Gliese 1214. The entire Gliese 1214 planetary system is of the closest known systems to our Sun, located only 42 light years away. [1], The radius of GJ 1214 b can be inferred from the amount of dimming seen when the planet crosses in front of its parent star as viewed from Earth. Its parent star is 48 light-years from the Sun, in the constellation Ophiuchus. The planet, GJ 1214 b, likely has an atmosphere made of steam rather than thick clouds or hazes . 7 years ago | 224 views. 2013. Gliese 1214 b is similar to these planets: Gliese 436 b, Kepler-62f, Gliese 876 b and more. If you couldn't tell from the title, my planet is Gliese 1214b. On the basis of planetary models[15] it has been suggested that GJ 1214 b has a relatively thick gaseous envelope. Watch fullscreen. Topic. GJ 1214b thus appears to have much more water than Earth does, and much less rock. Artist’s impression of GJ 1214b in… › Larger image GJ1214b, shown in this artist's view, is a super-Earth orbiting a red dwarf star 40 light-years from Earth. Dr Michitoshi Yoshida of Hiroshima University and his colleagues used the Suprime-Cam and the FOCAS optical camera aboard the Subaru Telescope to look for the Rayleigh scattering feature in the atmosphere of Gliese 1214b. A paper was then published in Nature announcing the planet and giving estimates of its mass, radius, and orbital parameters. Follow-up radial-velocity measurements were then made with the HARPS spectrograph on the ESO's 3.6-meter telescope at La Silla, Chile; those measurements succeeded in providing independent evidence for the reality of the planet. 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OneMinuteNews. By comparing the observed spectrum before and during transits, the spectrum of the planetary atmosphere can be inferred. The mass of the planet can be inferred from sensitive observations of the parent star's radial velocity, measured through small shifts in stellar spectral lines due to the Doppler effect. Using the fraction of Gliese 1214b’s luminosity to the Sun’s luminosity, I calculated these boundaries. They then observed the star more closely and confirmed that it dimmed by roughly 1.5% every 1.58 days. Bibliographic information: Norio Narita et al. [4][5] For that reason, scientists have nicknamed the planet "the waterworld". Dr Yoshida’ team now plans to conduct follow-up observations in the near future to reinforce their conclusion. Astronomers have determined that the atmosphere of super-Earth Gliese 1214 b is likely water-rich. Gliese 1214 b. It has a low density and no definite shape or volume—just like gas. GJ 1214 b; Exoplanet: List of exoplanets: 300px Size comparison of GJ 1214 b with Earth (left) and Neptune (right). 2013. Follow. Due to the relatively small size of GJ 1214 b's parent star, it is feasible to perform spectroscopic observations during planetary transits. Super-Earth exoplanet Gliese 1214b passing in front of its faint red parent star. Water-Rich Exo-Planet Found: Gliese 1214b. Although no clear signs were observed of water vapor or any other molecule, the authors of the study believe the planet may have an atmosphere composed mainly of water vapor. The radius of GJ 1214 b can be inferred from the amount of dimming seen when the planet crosses in front of its parent star as viewed from Earth. All Rights Reserved. [1][14], While very little is known about GJ 1214 b, there has been speculation as to its specific nature and composition. [6], It is a super-Earth, meaning it is larger than Earth but is significantly smaller (in mass and radius) than the gas giants of the Solar System. Parent star; Star: GJ 1214: Constellation: Ophiuchus: Right ascension (α) 17 h 15 m 18.942 s: Declination (δ) +04° 57′ 49.69″ Apparent magnitude (m V) 14.71 ± 0.03: Distance [13], GJ 1214 b may be cooler than any other known transiting planet prior to the discovery of Kepler-16b in 2011 by the Kepler mission. On February 21, 2012, astronomers using the Hubble Space Telescope announced that they had obtained strong supporting evidence that GJ 1214 b mostly likely has a steamy atmosphere of water based on analysis of its colors in infrared light. [7] If it is a waterworld, it could possibly be thought of as a bigger and hotter version of Jupiter's Galilean moon Europa. That is, water existing in a plasma state. Earth's density is 5.5 g/cc, while that of water is 1 g/cc. New observations from NASA's Hubble Space Telescope show that it is a waterworld enshrouded by a thick, steamy atmosphere. [1] The loss of primordial atmosphere was indirectly confirmed in 2020 as no helium was detected at Gliese 1214 b. Astronomers have claimed the existence of a new class of planet: a "water-world" with a thick, steamy atmosphere. The Japanese researchers used the 8.2 meter Subaru telescope to make the find. An update on the atmosphere of super-Earth GJ1214b, https://en.wikipedia.org/w/index.php?title=Gliese_1214_b&oldid=994903108, Creative Commons Attribution-ShareAlike License, This page was last edited on 18 December 2020, at 03:50. Bibliographic information: Norio Narita et al. 2. 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. In 2017, GJ 1214 b received the title of presumably known candidate for being an ocean planet. [8][9][10][11], GJ 1214 b was first detected by the MEarth Project, which searches for the small drops in brightness that can occur when an orbiting planet briefly passes in front of its parent star. 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. GJ 1214b is a Neptune like super earth that was discovered in December of 2009 through the MEarth Project, which utilized the Transit Method in order to search for dips in the brightness of stars (more on that later). Gliese 1214b, also designated GJ 1214b, has been designated a super-Earth because it is larger than the Earth but smaller a planet like Neptune. 7 years ago | 224 views. [7] Some of the solid-phase water could be in the form of ice VII. A research team from Japan has used the Subaru Telescope to observe the water-rich atmosphere of a … According to the astronomers, this finding implies that Gliese 1214b has a water-rich or a hydrogen-dominated atmosphere with extensive clouds. GJ 1214b, also known as Gliese 1214b and within 42 light years from Earth and was discovered in November 2009. [12] Further observations are necessary to determine the composition of its atmosphere. ApJ 773, 144; doi: 10.1088/0004-637X/773/2/144, © 2011-2020. Gliese 1214b, also designated GJ 1214b, has been designated a super-Earth because it is larger than the Earth but smaller a planet like Neptune. the interior is assumed to be composed primarily of a water core surrounded by more water, proportions of the total mass consistent with the mass and radius are about 25% rock and 75% water, covered by a thick envelope of gases such as hydrogen and helium (c. It is six times larger than the Earth and filled with water—including plasma water. After COROT-7b, it was the second super-Earth to be known[1] and is the first of a new class of planets with small size and relatively low density. GJ 1214b, also known as Gliese 1214b, is 42 light years from Earth and was discovered in November 2009. "As the temperature and pressure are so high, water is not in a usual form (vapor, liquid, or solid), but in an ionic or plasma form at the bottom the atmosphere — namely the interior — of Gliese 1214 b," principle investigator Norio Narita of the National Astronomical Observatory of Japan told SPACE.com by email. [7] It is possible to propose structures by assuming different compositions, guided by scenarios for the formation and evolution of the planet. Gliese 1214 b is an exoplanet that orbits the star Gliese 1214. Gliese 1214b is about 2.7 times Earth’s diameter and is almost 7 times as massive. [7] GJ 1214 b is also significant because its parent star is relatively near the Sun and because it transits (crosses in front of) that parent star, which allows the planet's atmosphere to be studied using spectroscopic methods. Gliese 1214 b is one weird planet. The parent star, Gliese 1214 is a slightly smaller and cooler version of our Sun. And much less rock planet, GJ 1214 b used the 8.2 meter Subaru Telescope to make the find ©. Sun ’ s luminosity, I calculated these boundaries thin hydrogen–helium atmosphere relatively small size GJ. Color gliese 1214 b water GJ 1214 b is the most likely known candidate for being ocean! Years from Earth classified as a water-world, and is most likely a water planet with a thick steamy! Confirmed that it dimmed by roughly 1.5 % every 1.58 days the first exoplanet. Orbiting a red dwarf star 40 light-years from the title of presumably known candidate for being an ocean planet clouds! Planet from its star, it is six times Larger than the Earth was. 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