# An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

## فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

### M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 72 Search : angle
 sidereal hour angle   زاویه‌ی ِ ساعتی ِ اختری   zâviye-ye sâ'ati-ye axtari (#)Fr.: angle horaire   The angle on the celestial sphere measured westward from the hour circle of the vernal equinox to that of the celestial body.→ sidereal; → hour angle. solid angle   زاویه‌ی ِ فضایی، ~ دفزه   zâviye-ye fazâyi, ~ dafzéFr.: angle solide   The figure formed by three or more planes meeting at a common point or formed at the vertex of a cone. The solid angle completely surrounding a point is 4π steradian. → steradian.→ solid; → angle.Zâviyé, → angle; fazâyi "of or relating to space," → space; jâmed, → solid. spherical angle   زاویه‌ی ِ کُره‌ای   zâviye-ye koreyiFr.: angle sphérique   An angle formed on the surface of a sphere by the intersection of two great circles of the sphere.→ spherical; → angle. spherical triangle   سه‌بر ِ کُره‌ای   sebar-e kore-yiFr.: triangle sphérique   A triangle drawn on the → surface of a → sphere. A spherical triangle, like a plane triangle, may be right, obtuse, acute, equilateral, isosceles, or scalene. The sum of the angles of a spherical triangle is greater than 180° (π) and less than 540° (3π). See also → spherical excess.→ spherical; → triangle. subtended angle   زاویه‌ی ِ زیرتانیده   zâvie-ye zirtânidéFr.: angle sous-tendu   An angle whose two sides pass through the endpoints of an arc.Subtended p.p. of → subtend; → angle. summer triangle   سه‌بر ِ تابستانی   sebar-e tâbestâniFr.: triangle d'été   The triangular shape formed by the three bright stars → Altair, → Deneb, and → Vega on the northern hemisphere's → celestial sphere, particularly visible during the summer months.→ summer; → triangle. supplementary angle   زاویه‌ی ِ آُپرنده   zâviye-ye âporandéFr.: angle supplémentaire   The angle that when added to a given angle makes 180°. → complementary angle.→ supplementary; → angle. tilt angle   زاویه‌ی ِ گرا   zâviye-ye gerâFr.: angle d'inclinaison   The angle a rocket makes with the vertical as it curves along its trajectory.→ tilt; → angle. triangle   سه‌گوش، سه‌گوشه، سه‌بر   seguš (#), segušé; (#), sebar (#)Fr.: triangle   The plane figure formed by three lines intersecting in pairs at three points; a three-sided → polygon. → equilateral triangle, → isosceles triangle, → scalene triangle.M.E., from O.Fr. triangle, from L. triangulum "triangle," from neuter of adj. triangulus "three-cornered," from tri-, → three, + angulus "corner," → angle.Seguš "three-cornered," from sé, → three, + guš "corner, → angle." Sebar "three-sided," from sé, → three, + bar "→ side; breadth; breast." triangle inequality   ناهموگی ِ سه‌بری   nâhamugi-ye sebariFr.: inégalité triangulaire   1) A theorem according to which any side of a triangle is always shorter than the sum of the other two sides. 2) The third requirement for a → distance function describing a → metric space.→ triangle; → inequality. viewing angle   زاویه‌ی ِ دید   zâviye-ye did (#)Fr.: angle de visée   The maximum angle at which a display, such as a TV screen, can be viewed with acceptable visual performance.Viewing, from view, M.E. v(i)ewe (n.); M.Fr. veue "sight," feminine p.p. of veoir "to see," from L. videre "to see," → vision; → angle.Zâviyé, → angle; did→ vision. Wide Angle Search for Planets (WASP)    WASP: جستجوی ِ سیاره با زاویه‌ی ِ گشاده   WASP: josteju-ye sayâré bâ zâviye-ye gošâdéFr.: WASP: recherche à angle large de planètes   An international collaboration, more accurately named SuperWASP, led by the United Kingdom, that aims at detecting → extrasolar planets by means of the → transit method. SuperWASP consists of two robotic observatories that operate continuously all year around, providing coverage of the sky in both hemispheres. The first, SuperWASP-North, is located on the island of La Palma. The second, SuperWASP-South, is located at the site of the South African Astronomical Observatory (SAAO). The observatories each consist of eight wide-angle cameras that simultaneously monitor the sky for → planetary transit events. Using the array of cameras makes it possible to monitor millions of stars simultaneously at an → apparent visual magnitude from about 7 to 13.→ wide; → angle; → search; → planet.

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