Free Astronomy Magazine May-June 2026 ARABIC VERSION

MAY-JUNE2026         Our Sun escaped the galactic center along withits“twins” byNAOJ DaisukeTaniguchi, TakujiTsujimoto hile archaeology on Earth studies the human past, galacticarchaeologytraces the vast journeys of stars and galax- ies.Forexample,scientistsknow that our Sun was born around 4.6 billionyearsago,morethan10,000 light-years closer to the center of the Milky Way than we are today. Whilestudiesofthecompositionof stars support this theory, this has long proven a conundrum to scien- tists. Observations reveal an enor- mous bar-like structure at our ga- lactic center which creates a “coro- tationbarrier,”whichmakesitdif- ficultforstarstoescapesofarfrom thecenter.Sohowdidwegethere? Toanswerthisquestion,ateamled by Assistant Professors Daisuke Taniguchi from Tokyo Metropolitan University and Takuji Tsujimoto fromtheNationalAstronomicalOb- اﻟﺸﻤﺲ ﻏﺎدر ﻣﺮﻛﺰاﻟﻤﺠﺮة ﺑﺮﻓﻘﺔ » اﺋﻤ ﺗﻮ «ﻬﺎ : ﻘﻠﻢ دا ﺴﻮﻛﻲ ﺗ ﺎﻧﻴﺠﻮﺗﺸﻲ ﺗﺎ ﻮﺟﻲ ﺗﺴﻮﺟ ﻤﻮﺗﻮ ﻓﻲ اﻟ ﺎ ﺎن اﻟﻤﺮﺻﺪ اﻟﻔﻠﻜﻲ اﻟﻮﻃ ﺑ ﻨﻤﺎ ﻋﻠﻢ ﻳﺪرس اﻵﺛـﺎر ﻋـﲆ اﻷرض ﻣـﺎﴈ اﻟﺒﴩ ﻳﺘﺘﺒـﻊ ﻋﻠـﻢ اﻵﺛـﺎر ا ﺠـﺮّي اﻟـﺮﺣﻼت اﻟﻬﺎﺋﻠﺔ ﻟﻠﻨﺠﻮم وا ﺠﺮ . ات ﻓﻌﲆ ﺳﺒﻴﻞ ا ﺜـﺎل ﻳﻌﻠﻢ اﻟﻌﻠﻤﺎء أن اﻟ ﺸﻤﺲ و ﻟﺪت ﻗﺒﻞ ﻧﺤﻮ 4.6 ﻣﻠﻴﺎر ﺳﻨﺔ ﻋـﲆ ﻣﺴـﺎﻓﺔ أﻗـﺮب ﺑـﺄﻛﺜﺮ ﻣـﻦ ١٠,٠٠٠ ﺳﻨﺔ ﺿﻮﺋﻴﺔ إﱃ ﻣﺮﻛـﺰ ﻣﺠـﺮة درب اﻟﺘﺒﺎﻧﺔ ﻣﻘﺎرﻧﺔً ﺑﻤﻮﻗﻌﻬـﺎ اﻟﺤـﺎﱄ . ورﻏـﻢ أن 1 .000 ﺳﻨﺔ ﺿﻮﺋﻴﺔ إﱃ ﻣﺮﻛـﺰ ﻣﺠـﺮة درب اﻟﺘﺒﺎﻧﺔ ﻣﻘﺎرﻧﺔً ﺑﻤﻮﻗﻌﻬـﺎ اﻟﺤـﺎﱄ . ورﻏـﻢ أن دراﺳﺎ ت ﺗﺮﻛﻴﺐ اﻟﻨﺠﻮم ﺗﺪﻋﻢ ﻫﺬه اﻟﻔﺮﺿـﻴﺔ ﻓﻘﺪ ﻇﻞ ذﻟﻚ ﻟﻐـﺰ اً اً ﻣﺤـ ﻟﻠﻌﻠﻤـﺎء ﺗ. ﻈﻬـﺮ اﻷرﺻﺎد وﺟﻮد ﺑﻨﻴﺔ ﺿﺨ ﻤﺔ ﺷﺒﻴﻬﺔ ﺑﺎﻟﻘﻀﻴﺐ ﰲ ﻣﺮﻛﺰ ﻣ ﺠﺮﺗﻨﺎ ﺗﻨﺸﺊ ﻣﺎ ﻳﻌﺮف ﺑـ » ﺣـﺎﺟﺰ اﻟﺪوران ا ﺸﱰك « وﻫﻮ ﻣﺎ ﻳﺠﻌﻞ ﻣﻦ اﻟﺼﻌﺐ ﻋﲆ اﻟﻨﺠـﻮم اﻻﺑﺘﻌـﺎد ﺴـﺎﻓﺎت ﻛﺒـ ة ﻋـﻦ ا ﺮﻛﺰ . ﻓﻜﻴﻒ وﺻﻠﻨﺎ إﱃ ﻫﻨﺎ؟ ﻟﻺﺟﺎﺑﺔ ﻋﻦ ﻫﺬا اﻟﺴـﺆال أﺟـﺮى ﻓﺮﻳ ـﻖ ﺑﻘﻴـﺎدة اﻷﺳـﺘﺎذﻳﻦ ا ﺴﺎﻋﺪﻳﻦ داﻳﺴﻮﻛﻲ ﺗﺎﻧﻴﻐﻮﺗﴚ ﻣﻦ ﺟﺎﻣﻌـﺔ ا ﺴﺎﻋﺪﻳﻦ داﻳﺴﻮﻛﻲ ﺗﺎﻧﻴﻐﻮﺗﴚ ﻣﻦ ﺟﺎﻣﻌـﺔ ﻃﻮﻛﻴ ﻮ اﻟﺤﴬﻳﺔ وﺗﺎﻛﻮﺟﻲ ﺗﺴﻮﺟﻴﻤﻮﺗﻮ ﻣﻦ ا ﺮﺻﺪ اﻟﻔﻠﻜـﻲ اﻟـﻮﻃﻨﻲ ﰲ اﻟﻴﺎﺑـﺎن دراﺳـﺔ واﺳﻌﺔ ﻏ ﻣﺴ ﺒﻮﻗﺔ ـﺎ ﻳﻌـﺮف ﺑــ ﻢﺋا ﺗـﻮ » اﻟﺸﻤﺲ « وﻫﻲ ﻧﺠـﻮم ﻟﻬـﺎ درﺟـﺎت ﺣـﺮارة وﺟﺎذﺑﻴﺔ ﺳﻄﺤﻴﺔ وﺗﺮﻛﻴﺒًﺎ ﻛﻴﻤﻴﺎﺋﻴًﺎ ﻣﺸـﺎﺑﻬًﺎ أﻋﻼﻩ : ﻧﺠﻮمﺷﺒﻴﻬﺔ ﺎﻟﺸﻤﺲ ﺗﺸ ﻞ ﻫﺠﺮة ــــﺔً ﻣــــﻦ ﻣﺮﻛــــﺰ ﻣﺠــــﺮة ﻤﺎﻋ در اﻟﺘ ﺎﻧــــﺔ ﺣــــﺪﺛﺖ ﻗﺒـــــــــﻞ ﻣــــــــــﺎ ﻘـــــــــﺎر 4 إﻟــــــــــﻰ 6 ـــــــــﺎراتﺳــــــــــﻨﺔ ﻣﻠ . [NAOJ] - ﻣﺎﻳﻮ ﻳﻮﻧﻴﻮ 2 0 2 6