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: 4 Search : galaxies
Antennae galaxies
  کهکشان‌ها‌ی ِ شاخکی   
kahkešânhâ-ye šâxak

Fr.: galaxies des Antennes   

The pair of colliding galaxies NGC4038 and NGC4039 and the long arcing insect-like "antennae" of luminous matter revealed by optical telescopes. The "antennae" are believed to have been produced by the collision between the galaxies that began about 100 million years ago and is still occurring. The Antennae Galaxies, about 60 million → light-years from Earth, lie in the constellation → Corvus.

Antennae, plural of → antenna; → galaxy.

Kahkešânhâ, plural of kahkešângalaxy; šâxak "insect antenna," from šâx "horn" (Mid.Pers šâk, cf. Skt. sakha- "a branch, a limb," Arm. cax, Lit. šaka, O.S. soxa, PIE *kakhâ "branch") + -ak suffix denoting relation, affinity, similarity (as in dastak, pos(tak, pas(mak, xarak, nâxonak, mus(ak, eynak);

cluster of galaxies
  خوشه‌ی ِ کهکشانی   
xuše-ye kahkašâni (#)

Fr.: amas de galaxies   

Same as → galaxy cluster.

cluster; → galaxy.

interacting galaxies
  کهکشان‌های ِ اندرژیرنده   
kahkešânhâ-ye andaržandé

Fr.: galaxies en interaction   

Galaxies that are close enough for their mutual gravitational attraction to produce perturbed shapes or extruded filaments of stellar material, called → tidal tails. Most galaxies are in clusters, and gravitational interactions between them are common.

Interacting, adj. of → interact; → galaxy.

merging galaxies
  کهکشان‌های ِ تشکنده   
kahkešânhâ-ye taškandé

Fr.: galaxies en coalescence   

Two or more galaxies that collide and merge into one galaxy.

merging; → galaxy.