Free Astronomy Magazine September-October 2026 ARABIC VERSION

SEPTEMBER-OCTOBER2026 imagedfromtheground.Theplan-et is also relatively cold and, hence, extremely faint relative to its host star. Direct imaging, where the light from an object is captured as in a photograph, only works for planets bright enough to show up next to theirmuchbrighterhoststars. Tak- ing a direct image of a planet as faint as Beta Pictoris d, therefore, represents a significant achieve- ment. “The new planet is 100 times fainter than Beta Pictoris b, the fa- mous planet in the same system, making it the faintest exoplanet everimageddirectlyfromEarth,” explains Bonse. This first clear de- tectionofBetaPictorisd,whichis 63 light-years away from us,was made with the ERIS instrument on theVLTbySutlieff,Bonseandtheir team.Anindependentteamled by Aidan Gibbs at the University of California,US,alsodiscoveredthe ﻣﺠﻠﺔ FreeAstronomy ﺎﻟﻌﺮ ﺔ 34 إﺿﺎءة اﻟﺠﺴﻢ ﻛﻤﺎ ﰲ اﻟﺼﻮرة اﻟﻔﻮﺗﻮﻏﺮا ﻓﻴـﺔ إﻻ ﻣﻊ اﻟﻜﻮاﻛﺐ اﻟﺴﺎﻃﻌﺔ ﺑﻤﺎ ﻳﻜﻔﻲ ﻟﻠﻈﻬﻮر ﺑ ﺠـﻮار ﻧﺠﻮﻣﻬـﺎ ا ﻀـﻴﻔﺔ اﻷﻛﺜـﺮ ﺳــﻄﻮﻋ ﺎً ﺮـ ﺑﻜﺜﻴ ﻓـ وﻟـﺬﻟﻚ ﺈن اﻟﺤﺼـﻮل ﻋـﲆ ﺻـﻮرة ﻣﺒﺎﴍة ﻟﻜﻮﻛﺐ ﺧﺎﻓﺖ ﻣﺜﻞ " ﺑﻴﺘﺎ ﺑﻴﻜﺘﻮرﻳﺲ "د ﻳﻌﺪ إﻧﺠـﺎز اً . ﺎً ﻣﻬﻤـ أوﺿـﺢ ﺑﻮﻧﺴـﻪ إن »: اﻟﻜﻮﻛﺐ اﻟﺠﺪﻳﺪ أﺧﻔﺖ ﺑﻤﺌﺔ ﻣﺮة ﻣـﻦ ﺑﻴﺘـﺎ " ﺑﻴﻜﺘـﻮرﻳﺲ b ، اﻟﻜﻮﻛـﺐ اﻟﺸـﻬ ﰲ اﻟﻨﻈـﺎم ﺑﻴﻜﺘﻮرﻳﺲ "ب اﻟﻜﻮﻛـﺐ اﻟﺸـﻬ ﰲ اﻟﻨﻈـﺎم ﻧﻔﺴﻪ ﻣﻤﺎ ﻳﺠﻌﻠـﻪ أﺧﻔـﺖ ﻛﻮﻛـﺐ ﺧـﺎرﺟﻲ ﺟـﺮى ﺗﺼـﻮﻳ ﺮه ﻣﺒـﺎﴍة ﻣـﻦ اﻷرضﻋـﲆ اﻹﻃﻼق «. وﺟﺮى أول رﺻﺪ واﺿـﺢ ﻟﻠﻜﻮﻛـﺐ " ﺑﻴﺘﺎ ﺑﻴﻜﺘﻮرﻳﺲ "د اﻟﺬي ﻳﺒﻌﺪ ﻋﻨـﺎ 63 ﺳـﻨﺔ ﺿﻮﺋﻴﺔ ﺑﺎﺳﺘﺨﺪام أداة إﻳـﺮﻳﺲ ا ﺜﺒﺘـﺔ ﻋـﲆ اﻟﺘﻠﺴﻜﻮب اﻟﻜﺒـ ﺟـﺪ اً ﺑﻮاﺳـﻄﺔ ﺳـﺎﺗﻠﻴﻒ وﺑﻮﻧﺴﻪ وﻓﺮﻳﻘﻬﻤﺎ . اﻟﺠﺰء اﻟﺜـﺎﻧﻲ واﻛﺘﺸـﻒ وﺑﻮﻧﺴﻪ وﻓﺮﻳﻘﻬﻤﺎ واﻛﺘﺸﻒ ﻓﺮﻳﻖ ﻣﺴـﺘﻘﻞ ﺑﻘﻴﺎدة أﻳﺪان ﺟﻴﺒﺲ ﻣﻦ ﺟﺎﻣﻌﺔ ﻛﺎﻟﻴﻔﻮرﻧﻴـﺎ ﰲ ا ﻟﻮﻻﻳـﺎت ا ﺘﺤـﺪة اﻟﻜﻮ ﻛـﺐ ﻧﻔﺴـﻪ أﻳﻀـ ﺎً ﺑﺎ ﺳﺘﺨﺪام ﺗﻠﺴﻜﻮب ﺟﻴﻤﺲ وﻳﺐ اﻟﻔﻀـﺎﺋﻲ وﻫﻮ ﻣﺮﺻﺪ ﻓﻀـﺎﺋﻲ ﺗـﺎﺑﻊ ﻟﻮﻛـﺎﻻت ﻧﺎﺳـﺎ واﻷوروﺑﻴﺔ واﻟﻜﻨﺪﻳﺔ وﻗﺪ ﻧـ ـ ﴩت ﻧﺘـﺎﺋﺠﻬﻢ اﻟﺠﺪﻳـﺪة ﻛـﺬﻟﻚ ﰲ ﻣﺠﻠـﺔ رﺳـﺎﺋﻞ اﻟﻔﻴﺰﻳـﺎء اﻟﻔﻠﻜﻴـﺔ Astrophysical Journal Letters . - ﺳﺒﺘﻤﺒﺮ ﺃﻛﺘﻮﺑﺮ 2 0 2 6 ﺗﻈﻬﺮ ﻫﺬﻩ اﻟﺴﻠﺴﻠﺔ ﻣﻦ اﻟﺼﻮر رﺻﺪاً ﻟﻠ ﻮﻛﺐ اﻟ ـ " ﺨﺎرﺟﻲ ﺑ ﺘﺎ ﺑ ﻜﺘﻮرﺲد " أﻛ ﻣﻦ ﻋﻘﺪ ﻋﻠﻰ ﻣﺪ . اﻛﺘﺸﻒﻫﺬا اﻟ ﻮﻛﺐ ﻷول ﻣﺮة ﺎﺳﺘﺨﺪامﺟﻬﺎز إﻳﺮﺲ اﻟﺘﻠﺴ ﻮب اﻟﻜﺒ ﺟﺪاً ﻋﻠﻰ ﻣ اﻟﺘﺎﺑﻊ ﻟﻠﻤﺮﺻﺪ اﻷوروﺑﻲ اﻟ ـ ﻤﻌـﺖ ﺑﻮاﺳـﻄﺔ ﺟﻬـﺎز ﺠﻨﻮﺑﻲ ﺛﻢ ﺗﻤﻜﻦ ﻋﻠﻤﺎء اﻟﻔﻠﻚ ﻣﻦ اﻟﻌﺜﻮرﻋﻠ ﮫ ﻓـﻲ اﻟﺒ ﺎﻧـﺎت اﻷرﺷـ ﻔ ﺔ اﻟـ ﺳـﻔ اﻟﻤﺘﺼـﻞ أ ﻀـﺎً ﺎﻟﺘﻠﺴــ ﻮب اﻟﻜﺒـ ﺟـﺪاً ـﺔ ـﺔ وو ﺎﻟــﺔ اﻟﻔﻀـﺎء اﻟﻜﻨﺪ ـﺐ اﻟﻔﻀـﺎﺋﻲ اﻟﺘـﺎﺑﻊ ﻟﻨﺎﺳـﺎ وو ﺎﻟـﺔ اﻟﻔﻀـﺎء اﻷوروﺑ وﺗﻠﺴـ ﻮبﺟـ ﻤﺲو . اﻟ ﻮﻛـﺐ اﻟــ ـ ﺠﺪ ﺪ اﻟﻤﺸﺎر إﻟ ﮫ ﺴﻬﻢﻫ ﻜﺘﺸﻒﺣﻮل اﻟﻨ ﻢ ﺑ ﺘﺎ ﺑ ﻜﺘﻮرﺲ ﻮ اﻟ ﻮﻛﺐ اﻟﺜﺎﻟﺚ اﻟﺬ . اﻟ ﻮﻛ ﺎن اﻵﺧـﺮان ﻫﻤـﺎ " ﺑ ﺘـﺎ ﺑ ﻜﺘـﻮرﺲب " - اﻟ ﻘﻌـﺔ اﻷﻛـ ﺳـﻄﻮﻋﺎً اﻟﻈـﺎﻫﺮة ﻓﻲ اﻟﺼﻮر اﻟﺜﻼث اﻟﻌﻠﻮ ﺔ – " وﺑ ﺘﺎ ﺑ ﻜﺘﻮرﺲج " ﻏ اﻟﻈﺎﻫﺮﻫﻨﺎ ﻷﻧﮫ ﺪورﻋﻠﻰﻣﺴﺎﻓﺔ أﻗﺮ ﻜﺜ ﻣﻦ اﻟﻨ ﻢ . اﻟـﻨ ﻢ ﻧﻔﺴـﮫ ﻏـ ﻣﺮـﻲﻫﻨـﺎ : ﻓـﻲﺻـﻮرة ﺟﻬـﺎز إﻳﺮﺲ ﺗﻢﻃﺮﺣﮫ أﺛﻨﺎء ﻣﻌﺎﻟ ـ ﺠﺔ اﻟﺒ ﺎﻧﺎت ﺑ ﻨﻤﺎ ﻓﻲﺻﻮر ﺗﻠﺴ ﻮب و ﺐ و ﺟﻬﺎزﺳﻔ ﺗﻢ ﺣﺠ ﮫ ﻘﻨـﺎع ﺧـﺎص . ﻣـﻊ ﻣـﺮور اﻟﻮﻗـﺖ ﺗـﺪوراﻟ ﻮاﻛـﺐﺣـﻮل اﻟـﻨ ﻢ و ﺗ ﺘﻐـ اﻣﻮ ﻗﻌﻬﺎ ﻓﻲﻫﺬﻩ اﻟﺼﻮر . ﻓﻲ رﺻﺪ ﻋﺎم 2014 ﺗﻘﺮ ﺎً ﺪا اﻟ ﻮﻛ ﺎن د و ب ﻣﺘﻮاز ﻤﺎ ﻳﺮىﻣﻦ اﻷرضوﻟﻢ ﻳﺮ اﻟ ﻮﻛﺐ ﺨـاﻟ "د" ﺎﻓﺖ إﻻ ﻌﺪ إزاﻟﺔﺿﻮء اﻟ ﻮﻛﺐ . "ب" اﻟﺸﺮﻂ اﻟﻤﻨﺘﺸﺮﻓﻲﻫﺬﻩ اﻟﺼﻮرﻫﻮ ﻗﺮصﻣﻦ اﻟ ـ ﺤﻄﺎم ﺣﻮل اﻟﻨ ﻢ ﻳﺮىﻫﻨﺎ ﻣﻦ ﺣﺎﻓﺘﮫ وﻫﻮ اﻟﻤﺎدة اﻟﻤﺘ ﻘ ﺔ ﻣﻦ ﺗ ﻮﻳﻦ اﻟ ﻮﻛﺐ . [ESO/B. Sutlieff, M. Bonse et al.]