[1], In December 2013, NASA reported that clouds may have been detected in the atmosphere of GJ 1214 b. It is six times larger than the Earth and filled with water—including plasma water. When searching for life on other planets, scientists are guided by the presence of water. 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). 2. 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". 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. › Larger image GJ1214b, shown in this artist's view, is a super-Earth orbiting a red dwarf star 40 light-years from Earth. A nearby alien planet six times the size of the Earth is covered with a water-rich atmosphere that includes a strange "plasma form" of water, scientists say. [7] GJ 1214 b could be a rocky planet with an outgassed hydrogen-rich atmosphere, a mini-Neptune, or an ocean planet. Artist’s impression of GJ 1214b in… Detailed information on planet GJ 1214 b orbiting around star GJ 1214. Super-earth Gliese 1214 b likely to have a water-rich atmosphere. [7] It is possible to propose structures by assuming different compositions, guided by scenarios for the formation and evolution of the planet. On Earth, the scale height is about 6 miles (10 kilometers), while on Gliese 1214 b it is three times deeper, according to Narita. [1] The loss of primordial atmosphere was indirectly confirmed in 2020 as no helium was detected at Gliese 1214 b. 2013. According to the astronomers, this finding implies that Gliese 1214b has a water-rich or a hydrogen-dominated atmosphere with extensive clouds. A paper was then published in Nature announcing the planet and giving estimates of its mass, radius, and orbital parameters. Astronomers have determined that the atmosphere of super-Earth Gliese 1214 b is likely water-rich. It is located 42 light years away in the constellation Ophiuchus. Sci-News.com. Follow. Although Gliese … GJ 1214 b; Exoplanet: List of exoplanets: 300px Size comparison of GJ 1214 b with Earth (left) and Neptune (right). In 2017, GJ 1214 b received the title of presumably known candidate for being an ocean planet. Image credit: NAOJ. [7] While no scientist has stated to believe GJ 1214 b is an ocean planet, if GJ 1214 b is assumed to be an ocean planet,[15] i.e. As of 2017, GJ 1214 b is the most likely known candidate for being an ocean planet. A research team from Japan has used the Subaru Telescope to observe the water-rich atmosphere of a … Super-Earth exoplanet Gliese 1214b passing in front of its faint red parent star. Astronomy Science ~ GJ 1214 b is a Super-Earth planet orbiting GJ 1214. New observations from NASA's Hubble Space Telescope show that it is a waterworld enshrouded by a thick, steamy atmosphere. 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. "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. 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. [4][5] For that reason, scientists have nicknamed the planet "the waterworld". Gliese 1214 b. Using the fraction of Gliese 1214b’s luminosity to the Sun’s luminosity, I calculated these boundaries. It is located 42 light years away in the constellation Ophiuchus. 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. It is thought that GJ 1214b was once entirely covered in a warm ocean of liquid water. Given the planet's mass and radius, its density can be calculated. GJ 1214b, also known as Gliese 1214b, is 42 light years from Earth and was discovered in November 2009. In early 2009, the astronomers running the project noticed that the star GJ 1214 appeared to show drops in brightness of that sort. Due to the relatively small size of GJ 1214 b's parent star, it is feasible to perform spectroscopic observations during planetary transits. It has a low density and no definite shape or volume—just like gas. The parent star, Gliese 1214 is a slightly smaller and cooler version of our Sun. All Rights Reserved. [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. [1] Given the planet's mass and radius, its density can be calculated. Astronomers from Japan using NAOJ’s Subaru Telescope have found that the extrasolar planet Gliese 1214b has a water-rich atmosphere. [1][14], While very little is known about GJ 1214 b, there has been speculation as to its specific nature and composition. 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. That is, water existing in a plasma state. The new observations, reported in the Astrophysical Journal (arXiv.org), showed that the exoplanet’s atmosphere does not display strong Rayleigh scattering. Gliese 1214 b is one weird planet. Topic. The Japanese researchers used the 8.2 meter Subaru telescope to make the find. If you couldn't tell from the title, my planet is Gliese 1214b. 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. The entire Gliese 1214 planetary system is of the closest known systems to our Sun, located only 42 light years away. Multi-color Transit Photometry of GJ 1214b through BJHK s Bands and a Long-term Monitoring of the Stellar Variability of GJ 1214. 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