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List Of Exoplanets Discovered In 2018
This List of exoplanets discovered in 2018 is a list of confirmed exoplanets that were first observed during 2018. For exoplanets detected only by radial velocity, the listed value for mass is a lower limit. See Minimum mass for more information. , , style="background:#FFFF00", transit , 750.6 , 0.881 , 5580 , , - , K2-174b , , 0.2223 , 19.56274 , 0.1242 , , style="background:#FFFF00", transit , 326.9 , 0.668 , 4500 , , - , K2-175b , , 0.182 , 9.5260 , 0.0906 , , style="background:#FFFF00", transit , 812.2 , 1.095 , 5909 , , - , K2-176b , , 0.1330 , 5.32944 , 0.05846 , , style="background:#FFFF00", transit , 812 , 0.939 , 5428 , , - , K2-177b , , 0.189 , 14.1552 , 0.1221 , , style="background:#FFFF00", transit , 1628 , 1.211 , 6063 , , - , K2-178b , , 0.317 , 8.74782 , 0.08171 , , style="background:#FFFF00", transit , 704.7 , 0.951 , 5525 , , - , K2-179b , , 0.224 , 5.17219 , 0.05488 , , style="background:#FFFF00", transit , 625.7 , 0.824 , 5015 , , - , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exoplanets
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, initially detected in 1988, was confirmed in 2003. There are many methods of detecting exoplanets. Transit photometry and Doppler spectroscopy have found the most, but these methods suffer from a clear observational bias favoring the detection of planets near the star; thus, 85% of the exoplanets detected are inside the tidal locking zone. In several cases, multiple planets have been observed around a star. About 1 in 5 Sun-like starsFor the purpose of this 1 in 5 statistic, "Sun-like" means G-type star. Data for Sun-like stars was not available so this statistic is an extrapolation from data about K-type stars. have an "Earth-sized"For the purpose of this 1 in 5 statistic, Earth-sized means 1–2 Earth radii. planet in the habitable zone. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamma Librae
Gamma Librae (γ Librae, abbreviated Gamma Lib, γ Lib) is a suspected binary star system in the constellation of Libra. It is visible to the naked eye, having an apparent visual magnitude of +3.91. Based upon an annual parallax shift of 19.99 mas as seen from Earth, it lies 163 light years from the Sun. The primary component (designated Gamma Librae A) has been formally named Zubenelhakrabi , the traditional name of the system. Nomenclature ''γ Librae'' ( Latinised to ''Gamma Librae'') is the system's Bayer designation. The designations of the two components as ''Gamma Librae A'' and ''B'' derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU). Gamma Librae bore the traditional name ''Zuben (el) Hakrabi'' (also rendered as ''Zuben-el-Akrab'' and corrupted as ''Zuben Hakraki''). The name is a modification of the Arabic زبانى العقرب ''Zubā ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HAT-P-11c
HAT-P-11, also designated GSC 03561-02092, is an orange dwarf metal rich star about 123 light-years away in the constellation Cygnus. This star is notable for its relatively large rate of proper motion. The magnitude of this star is about 9, which means it is not visible to the naked eye but can be seen with a medium-sized amateur telescope on a clear dark night. The age of this star is about 6.5 billion years. The star has active latitudes that generate starspots. The star appears to have a very small radius, which can be explained by the anomalously high helium fraction. Planetary system An extrasolar planet, was discovered by the HATNet Project using the transit method, believed to be a little larger than the planet Neptune. That planet orbits out of alignment from the star's spin axis. The system is oblique at 100°. This star system was within the field of view of the Kepler Mission planet-hunter spacecraft. A trend in the radial velocity measurements taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gliese 3779 B
Gliese may refer to: * Rochus Gliese (1891—1978), a German actor, director, production designer, and art director * Wilhelm Gliese (1915–1993), a German astronomer, best known for the Gliese Catalogue of Nearby Stars * Gliese Catalogue of Nearby Stars, a modern star catalog of stars located within 25 parsecs of the Earth * Gliese 163, a red dwarf located 49 light years from the Sun * Gliese 229, a binary system composed of a red dwarf and a brown dwarf about 19 light years away in the constellation Lepus. * Gliese 581, a red dwarf orbited by several extra-solar planets, at least ** Gliese 581d, a planet in the star's habitable zone * Gliese 667, a triple star system in the constellation of Scorpius containing exoplanet GJ 667 Cc in one of the stars' habitable zone * Gliese 682 Gliese 682 or GJ 682 is a red dwarf. It is listed as the 49th-nearest known star to the Sun, being about 16 light years away from the Earth. Even though it is close by, it is dim with a ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gliese 1265 B
Gliese may refer to: * Rochus Gliese (1891—1978), a German actor, director, production designer, and art director * Wilhelm Gliese (1915–1993), a German astronomer, best known for the Gliese Catalogue of Nearby Stars * Gliese Catalogue of Nearby Stars, a modern star catalog of stars located within 25 parsecs of the Earth * Gliese 163, a red dwarf located 49 light years from the Sun * Gliese 229, a binary system composed of a red dwarf and a brown dwarf about 19 light years away in the constellation Lepus. * Gliese 581, a red dwarf orbited by several extra-solar planets, at least ** Gliese 581d, a planet in the star's habitable zone * Gliese 667, a triple star system in the constellation of Scorpius containing exoplanet GJ 667 Cc in one of the stars' habitable zone * Gliese 682 Gliese 682 or GJ 682 is a red dwarf. It is listed as the 49th-nearest known star to the Sun, being about 16 light years away from the Earth. Even though it is close by, it is dim with a ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gliese 1132
GJ 1132 is a small red dwarf star away from Earth in the constellation Vela. In 2015, it was revealed to have a hot rocky Earth-sized planet orbiting it every 1.6 days. In 2018, a second planet and a potential third were revealed. Planetary system As of June 12, 2018, there are two confirmed exoplanets and one candidate exoplanet orbiting GJ 1132. GJ 1132 b GJ 1132 b is the innermost planet of the GJ 1132 system, as well as the smallest. It is very similar in size and mass to Earth, with a radius of 1.13 and a mass of 1.66 . It is slightly denser than Earth with 30% more surface gravity, meaning it has a rocky composition. Despite its physical similarities to Earth, it is considered too hot to be habitable, getting 19 times more sunlight due to its 1.6 day orbital period. , it remains unclear whether the planet has an atmosphere, with some studies finding evidence for an atmosphere, but others finding a flat, featureless spectrum that leaves the presence or absence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
