|
Anglo-Australian Planet Search
The Anglo Australian Planet Search or (AAPS) is a long-term astronomical survey started in 1998 and continuing to the present. It is being carried out on the 3.9-metre Anglo-Australian Telescope (AAT) of the Anglo-Australian Observatory in Australia. The purpose of this survey is to catalog planets around more than 240 List of nearest stars and brown dwarfs, nearby stars of the southern hemisphere. For its observations, the AAT uses the ''University College London Echelle Spectrograph'', UCLES, an echelle spectrograph from the University College London located at the telescope's coudé focus. This survey uses the radial velocity method to search for extrasolar planets. The survey eventually switched its main focus to detecting long-period Jupiter analogs.The Anglo-Australian Planet Search. XXIII. Two New Ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Survey
An astronomical survey is a general map or image of a region of the sky (or of the whole sky) that lacks a specific observational target. Alternatively, an astronomical survey may comprise a set of images, spectra, or other observations of objects that share a common type or feature. Surveys are often restricted to one band of the electromagnetic spectrum due to instrumental limitations, although multiwavelength surveys can be made by using multiple detectors, each sensitive to a different bandwidth. Surveys have generally been performed as part of the production of an astronomical catalog. They may also search for transient astronomical events. They often use wide-field astrographs. Scientific value Sky surveys, unlike targeted observation of a specific object, allow astronomers to catalog celestial objects and perform statistical analyses on them without complex corrections for selection effects. In some cases, an astronomer interested in a particular object will find tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 2039 B
HD 2039 b is an extrasolar planet orbiting the star HD 2039. It is almost five times as massive as Jupiter and has a very eccentric orbit In celestial mechanics, an orbit is the curved trajectory of an object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such as .... References External links The Extrasolar Planets Encyclopaedia: HD 2039 Phoenix (constellation) Giant planets Exoplanets discovered in 2002 Exoplanets detected by radial velocity {{extrasolar-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 20782b
HD 20782 b is an extrasolar planet located approximately 117 light-years away in the constellation of Fornax Fornax () is a constellation in the southern celestial hemisphere, partly ringed by the celestial river Eridanus. Its name is Latin for furnace. It was named by French astronomer Nicolas Louis de Lacaille in 1756. Fornax is one of the 88 modern ..., orbiting the star HD 20782. This planet orbits in the most eccentric orbit known (as of November 2012), with a semi-major axis of 1.36 AU, and eccentricity e=0.97+/-0.01. As a result, it also has one of the most extreme temperature swings. See also * HD 80606 b References External links * Fornax (constellation) Exoplanets discovered in 2006 Giant planets Exoplanets detected by radial velocity {{extrasolar-planet-stub de:HD 20782 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 208487 B
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. The planet HD 208487 b is named Mintome. The name was selected in the NameExoWorlds campaign by Gabon, during the 100th anniversary of the IAU The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach .... Mintome, in the Fang tongue, is a mythic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mu Arae C
Mu Arae c, also known as HD 160691 c, formally named Dulcinea (pronounced or ), is an extrasolar planet orbiting the star Mu Arae of the constellation Ara. It was the first 'hot Neptune' or 'mega-Earth' to be discovered. None of the four planets orbiting Mu Arae are directly visible from Earth using currently available tools. All four were found using the radial velocity method of extrasolar planet detection. Discovery The planet's discovery was announced on August 25, 2004. At the time, its minimum mass was reported at just 14 times that of Earth, although later work established a value of 10.5 Earth masses. It orbits very close to Mu Arae, completing one revolution every 9.6 days. The discovery was made with the aid of the High Accuracy Radial Velocity Planet Searcher (HARPS) spectrograph, at the European Southern Observatory's La Silla Observatory in Chile. The data that revealed the presence of this planet was gathered on 8 nights of observations in June 2004. Name In July 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 154857 B
HD 154857 b is an extrasolar planet approximately 224 light years away in the constellation of Ara. This is a gas giant mass that orbits the star in an eccentric orbit. This planet was detected by using Anglo-Australian Telescope (AAT) UCLE spectrometer A spectrometer () is a scientific instrument used to separate and measure spectral components of a physical phenomenon. Spectrometer is a broad term often used to describe instruments that measure a continuous variable of a phenomenon where the .... References External links * Simulation HD 154857 bnews.bbc.co.uk Ara (constellation) Exoplanets discovered in 2004 Giant planets Exoplanets detected by radial velocity {{extrasolar-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 117618 B
HD 117618 b, named Noifasui by the IAU, is an exoplanet discovered orbiting the star HD 117618 in September 2004. The planet is a small gas giant less than a fifth the mass of Jupiter. It orbits close to its star in a very eccentric orbit. Name The planet was originally named "HD 117618 b", being the second object in the HD 117618 system. It was given the name "Noifasui" by the IAU, chosen by Indonesian representatives for the NameExoWorlds NameExoWorlds (also known as IAU NameExoWorlds) is the name of various projects managed by the International Astronomical Union (I.A.U.) to encourage names to be submitted for astronomical objects, which would later be considered for official ad ... campaign, meaning ''revolve around'' in Nias language (derived from the word ''ifasui'', meaning ''to revolve around'', and ''no'', indicating that the action occurred in the past and continued to the present time). Its parent star was simultaneously named "Dofida" in the contest. Referenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 102117 B
HD 102117 b, formally named Leklsullun, is a planet that orbits the star HD 102117. The planet is a small gas giant a fifth the size of Jupiter. It orbits very close to its star, but not in a "torch orbit" like the famous 51 Pegasi b. It was one of the smallest extrasolar planets discovered as of 2006. In 2004, the Anglo-Australian Planet Search announced a planet orbiting the star HD 102117. A short time later the HARPS The High Accuracy Radial Velocity Planet Searcher (HARPS) is a high-precision echelle planet-finding spectrograph installed in 2002 on the ESO's 3.6m telescope at La Silla Observatory in Chile. The first light was achieved in February 2003. ... team also announced the presence of a planet around this same star HD 102117. Both groups detected this planet using the radial velocity method. References External links * Exoplanets discovered in 2005 Giant planets Centaurus Exoplanets detected by radial velocity Exoplanets with proper names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 70642 B
HD 70642 b is an exoplanet orbiting the star HD 70642 at a distance of 3.23 AU, taking 5.66 years to complete an orbit. This planet may have systems of moons like Jupiter. This planet was discovered on July 3, 2003. It is located about 95 light-years away in the constellation Puppis. In 2023, the inclination and true mass of HD 70642 b were determined via astrometry. See also * 55 Cancri d 55 Cancri d (abbreviated 55 Cnc d), formally named Lipperhey , is an extrasolar planet in a long-period orbit around the Sun-like star 55 Cancri A. Located at a similar distance from its star as Jupiter is from the Sun, it is the fifth and outer ... * Gliese 777 b * HD 28185 b * Mu Arae e * Pi Mensae b References External links * Puppis Exoplanets discovered in 2003 Giant planets Exoplanets detected by radial velocity Exoplanets detected by astrometry {{extrasolar-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tau1 Gruis B
Tau1 Gruis b, also known as HD 216435 b, is an extrasolar planet approximately 109 light-years away in the constellation of Grus (the Crane). The planet was discovered orbiting the star in September 2002. It was calculated that the planet orbits its sun at an average distance of 2.7 astronomical units. The planet is over 1.25 times as massive as Jupiter. See also * 55 Cancri 55 Cancri is a binary star system located 41 light-years away from the Sun in the zodiac constellation of Cancer. It has the Bayer designation Rho1 Cancri (ρ1 Cancri); ''55 Cancri'' is the Flamsteed designation (abbr ... * Phi2 Pavonis * Rho Indi b References * web Preprint External links * * Grus (constellation) Exoplanets discovered in 2002 Giant planets Exoplanets detected by radial velocity {{extrasolar-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rho Indi B
Rho Indi b is an exoplanet that orbits around Rho Indi. Its semimajor axis is 2.54 AU placing just outside the star's habitable zone. The planet takes 3.7 years to orbit the star. It is over twice as massive as Jupiter. Since the inclination of the orbit to the line-of-sight was initially unknown, only a lower bound In mathematics, particularly in order theory, an upper bound or majorant of a subset of some preordered set is an element of that is greater than or equal to every element of . Dually, a lower bound or minorant of is defined to be an eleme ... on the planet's mass could be determined. In 2023, the inclination and true mass of Rho Indi b were determined via astrometry. See also * Tau1 Gruis b References External linksThe Extrasolar Planets Encyclopedia: HD 216437 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 196050 B
HD 196050 b is an exoplanet with a 1378-day period and a minimum mass of 2.90 Jupiter masses. The average orbital distance is 2.54 astronomical units and the orbital eccentricity is 22.8%. The periastron (closest) distance is 1.96 AU and the apastron (farthest) distance is 3.12 AU. The average orbital velocity is 20.1 km/s and the semi-amplitude is 49.7 m/s. The longitude of periastron is 187° and the time of periastron is 2,450,843 JD. The planet was discovered by using Doppler spectroscopy by looking for shifts in the spectrum of the star. In Australia, Jones et al. found this planet in 2002 by using the telescope A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. Originally meaning only an optical instrument using lenses, curved mirrors, or a combination of both to observ ... in Anglo-Australian Observatory. In 2023, the inclination and true mass of HD 196050 b were deter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
