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27 relations: Astronomy & Astrophysics, BBC, Chile, Circumstellar habitable zone, Earth, Earth mass, European Southern Observatory, Exoplanet, Geneva Observatory, Gliese 581, Gliese 581 planetary system, Gravity, Habitability of red dwarf systems, High Accuracy Radial Velocity Planet Searcher, Io (moon), La Silla Observatory, Libra (constellation), Light-year, Mass, Michel Mayor, Orbit, Planet, Radial velocity, Science (journal), Telescope, The New York Times, True mass.
Astronomy & Astrophysics
Astronomy & Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.
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BBC
The British Broadcasting Corporation (BBC) is a British public service broadcaster.
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Chile
Chile, officially the Republic of Chile, is a South American country occupying a long, narrow strip of land between the Andes to the east and the Pacific Ocean to the west.
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Circumstellar habitable zone
In astronomy and astrobiology, the circumstellar habitable zone (CHZ), or simply the habitable zone, is the range of orbits around a star within which a planetary surface can support liquid water given sufficient atmospheric pressure.
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Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
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Earth mass
Earth mass (where ⊕ is the standard astronomical symbol for planet Earth) is the unit of mass equal to that of Earth.
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European Southern Observatory
The European Southern Observatory (ESO) is a 15-nation intergovernmental research organization for ground-based astronomy.
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Exoplanet
An exoplanet or extrasolar planet is a planet outside our solar system.
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Geneva Observatory
The Geneva Observatory (Observatoire de Genève, Observatorium von Genf) is an astronomical observatory at Sauverny (CH) in the municipality of Versoix, Canton of Geneva, in Switzerland.
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Gliese 581
Gliese 581 is a star of spectral type M3V (a red dwarf) at the center of the Gliese 581 planetary system, about 20 light years away from Earth in the Libra constellation.
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Gliese 581 planetary system
The Gliese 581 planetary system is the gravitationally bound system comprising the star Gliese 581 and the objects that orbit it.
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Gravity
Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.
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Habitability of red dwarf systems
The habitability of red dwarf systems is determined by a large number of factors from a variety of sources.
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High Accuracy Radial Velocity Planet Searcher
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.
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Io (moon)
Io (Jupiter I) is the innermost of the four Galilean moons of the planet Jupiter.
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La Silla Observatory
La Silla Observatory is an astronomical observatory in Chile with three telescopes built and operated by the European Southern Observatory (ESO).
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Libra (constellation)
Libra is a constellation of the zodiac.
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Light-year
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
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Mass
Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.
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Michel Mayor
Michel G.E. Mayor (born 12 January 1942, Lausanne) is a Swiss astrophysicist and professor emeritus at the University of Geneva's Department of Astronomy.
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Orbit
In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.
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Planet
A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.
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Radial velocity
The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point.
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Science (journal)
Science, also widely referred to as Science Magazine, is the peer-reviewed academic journal of the American Association for the Advancement of Science (AAAS) and one of the world's top academic journals.
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Telescope
A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).
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The New York Times
The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.
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True mass
The term true mass is synonymous with the term mass, but is used in astronomy to differentiate the measured mass of a planet from the lower limit of mass usually obtained from radial velocity techniques.
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References
[1] https://en.wikipedia.org/wiki/Gliese_581e
