An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 2 Search : ascending node
ascending node
  گره ِ فرازشی   
gereh-e farâzeši

Fr.: nœud ascendant   

The point in an orbit where the orbiting body crosses a reference plane, such as the ecliptic or the celestial equator, going from south to north. The celestial longitude of the ascending node is one of the elements of the orbit. → descending node.

Ascending, from ascend, from L. ascendere "to climb up," from ad- "to" + scandere "to climb." Node, from L. nodus "knot".

Gereh "knot," from Mid.Pers. grih "knot." Farâzeši, relating to farâzeš "ascension," from farâzidan "to ascend," from farâz "up, upon, upward, aloft."

longitude of ascending node
  درژنای ِ گره ِ فرازشی   
derežnâ-ye gereh-e farâzeši

Fr.: longitude du nœud ascendant   

One of the → orbital elements used to specify the orbit of an object in space. It is the angle from the reference direction, called the origin of longitude, to the direction of the → ascending node, measured in the reference plane.

longitude; → ascending node.