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HD 16175 b is an exoplanet located approximately 195.7 light-years away in the constellation of Andromeda, orbiting the star HD 16175. This planet has a minimum mass 4.8 times that of Jupiter; the true mass was initially unknown since the inclination of the orbit was unknown. This planet orbits at about 2.2 astronomical units, taking 2.73 years to revolve around the star. The orbit of the planet is highly elliptical with an eccentricity of 0.64. In 2023, the inclination and true mass of HD 16175 b were determined via astrometry.
HD 192699 b, also named Khomsa, is an exoplanet located approximately 214 light-years away in the constellation of Aquila, orbiting the star HD 192699. This planet was discovered in April 2007, massing at least 2.5 times the mass of Jupiter (MJ). Despite its orbital distance more than that of Earth, the orbital period is less than a year, because the parent star is more massive than the Sun.
HD 224693 b, also named Xólotl, is an extrasolar planet orbiting the star HD 224693 every 27 days with a minimum mass 70% of Jupiter.
HD 93083 b is an extrasolar planet orbiting the K-type subgiant star HD 93083 in Antlia constellation. It is probably much less massive than Jupiter, although only the minimum mass is known. The planet's mean distance from the star is about half that of Earth, and the orbit is slightly eccentric. This planet was discovered by the HARPS search team.
HD 23079 b, formally named Guarani, is an exoplanet approximately 109 light years away in the constellation Reticulum. The planet has mass of at least 2.45 Jupiters, although only the minimum mass is known since inclination is unknown. The planet takes almost exactly two years to orbit the star at the average distance of 1.6 AU. The planet's orbital eccentricity is about the same as 109 Piscium b, HD 75898 b, and HD 69830 b at 0.102. The distance range from as close as 1.44 AU to as far away as 1.76 AU from the parent star.
HD 208487 b is an extrasolar planet located approximately 144 light-years away in the constellation of Grus, orbiting the star HD 208487. This planet has a minimum mass close to half that of Jupiter and is most probably a gas giant. The planet orbits the star in a close, eccentric orbit. One revolution takes 130 days to complete. This planet was discovered on September 16, 2004 by Tinney, Butler, and Marcy et al. using Doppler spectroscopy to measure the star's radial velocity changing over time as the planet revolves around its orbit.
BD-17°63 b, formally named Finlay, is an exoplanet located approximately 112.5 light-years away in the constellation of Cetus, orbiting the 10th magnitude K-type main sequence star BD−17 63. This planet has a minimum mass of 5.1 MJ and orbits at a distance of 1.34 astronomical units from the star. The distance ranges from 0.62 AU to 2.06 AU, corresponding to the eccentricity of 0.54. One revolution takes about 656 days.
HD 153950 b, also known as Trimobe, is an extrasolar planet located approximately 162 light-years away. This planet was discovered on October 26, 2008 by Moutou et al. using the HARPS spectrograph on ESO's 3.6 meter telescope installed at La Silla Observatory in Atacama desert, Chile.
HD 20868 b is an extrasolar planet located approximately 156 light-years away in the constellation of Fornax, orbiting the 10th magnitude K-type subgiant star HD 20868. This planet has a minimum mass of 1.99 times more than Jupiter and orbits at a distance of 0.947 AU. This planet takes 380.85 days or 12.5 months to revolve around the star with an eccentricity of 0.75, one of the most eccentric of any known extrasolar planets. At periastron, the distance is 0.237 AU and at apastron, the distance is 1.66 AU.
HD 173416 b, also named Wangshu, is an extrasolar planet located approximately 440 light years away in the constellation of Lyra, orbiting the 6th magnitude G-type giant star HD 173416. This is planet has at least 2.7 times the mass of Jupiter and was discovered on January 10, 2009 by Liu et al. HD 173416 b orbits at 1.16 AU from the star. However, despite the fact that the planet orbits 16% further from the star than Earth does from the Sun, it has orbital period of only 323.6 days, compared to 365.25 days for Earth. This inverse relationship is caused by the parent star having twice the mass of the Sun, which increases the strength of its gravitational field. This evidence implies that when this star was on the main sequence, it was an A-type star.
BD−17 63 is a low-mass K-type main-sequence star in the southern constellation Cetus. It is a 10th magnitude star at a distance of 113 light-years from Earth. The star is rotating slowly with a negligible level of magnetic activity and an age of over 4 billion years.
HD 32518 b, formally named Neri, is an extrasolar planet which orbits the K-type giant star HD 32518, located 399.7 light years away in the constellation Camelopardalis. It has a minimum mass three times greater than Jupiter and orbits the intermediate-mass giant star at a distance of only 0.59 AU in a very circular orbit. The orbit takes 10.35 months to complete one round trip around the star. This planet was detected by the radial velocity method on August 12, 2009.
HD 5388 is a single star in the southern constellation of Phoenix. It has the Gould designation 78 G. Phoenicis, while HD 5388 is the star's Henry Draper Catalogue identifier. This object has a yellow-white hue and is too faint to be readily visible to average human eyesight, having an apparent visual magnitude of 6.73. It is located at a separation of 173 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +39 km/s.
HD 181720 is star with an orbiting substellar companion in the southern constellation of Sagittarius. It is located at a distance of 196 light years from the Sun based on parallax measurements, but is drifting closer with a radial velocity of −45.4 km/s. The star has an absolute magnitude of 4.10, but at that distance it has an apparent visual magnitude of 7.84, which is too faint to be seen with the naked eye. It shows a high proper motion, traversing the celestial sphere at an angular rate of 0.444 arcsec yr−1.
HD 190984 b is an exoplanet which orbits the F-type main sequence star HD 190984, located approximately 486 light-years away in the constellation Pavo. This planet has a minimum mass three times that of Jupiter and takes 13 years and four-and-a-half months to orbit the star at a semimajor axis of 5.5 AU with an eccentricity of 0.57. This planet was detected by HARPS on October 19, 2009, together with 29 other planets.
HD 43197 b is an extrasolar planet which orbits the G-type main sequence or subgiant star HD 43197, located approximately 204 light years away in the constellation Canis Major. This planet has a minimum mass 55% that of Jupiter and takes 0.85 years to orbit the star at a semimajor axis of 0.882 AU. Its has a high eccentricity of 0.74, but its inclination is not known. This planet was detected by HARPS on October 19, 2009, together with 29 other planets.
HD 156411 b is an extrasolar planet which orbits the G-type main sequence star HD 156411, located approximately 179 light years away in the constellation Ara. This planet has at least three-fourths the mass of Jupiter and takes eight-thirds years to orbit the star at a semimajor axis of 1.81 AU. However unlike most other known exoplanets, its eccentricity is not known, but it is typical that its inclination is not known. This planet was detected by HARPS on October 19, 2009, together with 29 other planets.
HD 85390 b is an extrasolar planet which orbits the G-type main sequence star HD 85390, located approximately 106 light years away.
HD 63765 is a star with an orbiting exoplanet in the southern constellation of Carina. It is too faint to be visible with the naked eye, having an apparent visual magnitude of 8.10. The distance to this system is 106 light years based on parallax measurements, and it is drifting further away with a heliocentric radial velocity of 22 km/s.
HD 212771 b is an extrasolar planet orbiting the G-type star HD 212771 approximately 364 light years away in the constellation Aquarius.
References
- 1 2 3 4 5 6 7 Santos, Nuno C.; Mayor, Michel; Benz, Willy; Bouchy, François; et al. (2010). "The HARPS Search for Southern Extra-solar Planets XXI. Three New Giant Planets Orbiting the Metal-poor Stars HD 5388, HD 181720, and HD 190984". Astronomy and Astrophysics. 512 (A47): A47. arXiv: 0912.3216 . Bibcode:2010A&A...512A..47S. doi:10.1051/0004-6361/200913489. S2CID 118675798.
- ↑ "Approved names". NameExoworlds. Retrieved 2020-01-02.
- ↑ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
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