helioseismological
Of or pertaining to helioseismology

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  • helioseismological — …   Useful english dictionary

  • Solar and Heliospheric Observatory — ▪ satellite  satellite managed jointly by the European Space Agency (ESA) and the U.S. National Aeronautics and Space Administration (NASA) that is equipped with a battery of novel instruments to study the Sun.  SOHO was launched by NASA on an… …   Universalium

  • Main sequence — A Hertzsprung Russell diagram plots the actual brightness (or absolute magnitude) of a star against its color index (represented as B V). The main sequence is visible as a prominent diagonal band that runs from the upper left to the lower right.… …   Wikipedia

  • Differential rotation — is seen when different parts of a rotating object move with different angular velocities (rates of rotation) at different latitudes and/or depths of the body and/or in time. This indicates that the object is not solid. In fluid objects, such as… …   Wikipedia

  • Differential rotation in stars — What is differential rotation? *Differential rotation is when a rotating body has different angular velocities at different latitudes and/or depths of the body and/or in time. Differential rotation can be applied to any type of fluid body such as …   Wikipedia

  • Séquence principale — Le diagramme de Hertzsprung Russell figure les étoiles. En abscisse, l indice de couleur (B V) ; en ordonnée, la magnitude absolue. La séquence principale se voit comme une bande diagonale marquée allant du haut à gauche au bas à droite. Ce… …   Wikipédia en Français

  • helioseismology — /ˌhilioʊsaɪzˈmɒlədʒi/ (say .heeleeohsuyz moluhjee) noun the branch of astrophysics that studies the soundwaves that propagate throughout the sun in order to investigate its internal structure and dynamics. {helio + seismology} –helioseismologic… …   Australian English dictionary

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