An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Galactic longitude
  درژنا‌ی ِ کهکشانی  
derežnâ-ye kahkešâni
Fr.: longitude galactique  

In the → Galactic coordinate system, the angle between the → Galactic Center and the projection of the object on the → Galactic plane.
Galactic longitude, usually represented by the symbol lII, ranges from 0 degrees to 360 degrees.

See also: → galactic; → longitude.