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 : Solar System
early solar system
  راژمان ِ خورشیدی ِ آغازین   
râžmân-e xoršidi-ye âqâzin

Fr.: système solaire primordial   

A period in the evolution of the → solar system when the planets and satellites were in the process of formation.

early; → solar; → system.

small solar system body
  جسم ِ کوچک ِ راژمان ِ خورشیدی   
jesm-e kucak-e râžmân-e xoršidi

Fr.: petit corps du système solaire   

A term introduced by the → International Astronomical Union (August 2006) to name the → solar system bodies other than → planets and → dwarf planets. Small solar system bodies include → asteroids, → comets, and → meteoroids.

small; → solar; → system; → body.

solar system
  راژمان ِ خورشیدی   
râšmân-e xoršidi

Fr.: Système solaire   

The collective name for the Sun and all objects gravitationally bound to it. These objects are the eight planets, their 166 known moons, five dwarf planets, and billions of small bodies. The small bodies include asteroids, icy Kuiper belt objects, comets, meteoroids, and interplanetary dust. The solar system is roughly a sphere with a radius greater than 100,000 AU. Planets, satellites, and all interplanetary material together comprise only about 1/750 of the total mass. Geochemical dating methods show that the solar system chemically isolated itself from the rest of the Galaxy (4.7 ± 0.1) × 109 years ago.

solar; → system.

solar system abundance
  فراوانی ِ راژمان ِ خورشیدی   
farâvâni-ye râžmân-e xoršidi

Fr.: abondance dans le système solaire   

Same as → protosolar abundance.

solar system; → abundance.