Free Astronomy Magazine November-December 2024 ARABIC VERSION

curyistotheSun.Itorbitsitsstarin 3.15 Earth days and has a surface temperature around 125 °C. “Barnardbisoneofthelowest- mass exoplanets known and one of thefewknownwithamassless than that of Earth. But the planet is tooclosetothehoststar,closer NOVEMBER-DECEMBER2024 ﻣﺠﻠﺔ FreeAstronomy ﺎﻟﻌﺮ ﺔ 6 ﻧﻮﻓﻤﺒﺮ - ﺩﻳﺴﻤﺒﺮ 2 0 2 4 ﻳﺪور اﻟﻜﻮﻛﺐ ﺣﻮل ﻧﺠﻤﻪ ﰲ 3.15 ﻳﻮﻣـﺎً أرﺿﻴ ﺎً ودرﺟﺔ ﺣﺮارة ﺳﻄﺤﻪ ﺣﻮاﱄ 125 درﺟﺔ ﻣﺌﻮﻳﺔ . ﻳﻌﺘﱪ اﻟﻜﻮﻛﺐ ﺑﺮﻧﺎرد أﺣﺪ أﻗ ـﻞ اﻟﻜﻮاﻛ ـﺐ اﻟﻨﺠﻤﻴ ـﺔ ﻣ ـﻦ و ﻛﺘﻠ ـﺔً اﻟﻜﻮاﻛﺐ اﻟﻘﻠﻴﻠﺔ ا ﻌﺮوﻓﺔ اﻟﺘﻲ ﻛﺘﻠﻬﺎ أﻗﻞ ﻣﻦ ﻛﺘﻠﺔ اﻷرض ﻟﻜﻦ اﻟﻜﻮ ﻛﺐ ﻗﺮﻳﺐ ﺟﺪاً إﱃ ﻧﺠﻤﻪ ﻣﻦ ا ﻨﻄﻘﺔ اﻟﺼﺎﻟﺤﺔ ﻟﻠﺤﻴﺎة . ﺗﻈﻬﺮ ـﻢ ﺗـﻲ ﺎرـﺎرد ﻓـﻲ ﻫﺬﻩ اﻟﺼﻮرة ذات اﻟﻤﺠﺎل اﻟﻮاﺳﻊ ﻣﺤـ ﻂ اﻟﻘـﺰم اﻷ ﻤـﺮاﻟﻤﻌـﺮوف ﺎﺳـﻢ ﻧ ـﺔ اﻟــ ـ ﻮﻛ ) ﺤﻮاء ــﺎن ﺣﺎﻣـﻞ اﻟﺜﻌ .( ﻟﻘـﺪ ﺗــﻢ إﻧ ﺸـﺎء ﻫــﺬﻩ اﻟﺼـﻮرة ﻣــﻦ ﻣـﺎدة ﺗﺸـ ﻞ ﺟـﺰء ا ﻣــﻦ ﻣﺴـﺢ اﻟﺴــﻤﺎء اﻟﺮﻗﻤﻲ 2 . ُﻈﻬﺮ ﻣﺮﻛﺰ اﻟﺼﻮرة ﻧ ﻢ ﺎر ﺎرد اﻟﻤﻠﺘﻘﻂ ﺜﻼﺛﺔ ﺗﻌﺮﻀﺎت ﺗﺼﻮﻳﺮﺿﻮﺋ ﺔ . ﻣﺨﺘﻠﻔﺔ اﻟﻨ ﻢﻫﻮ ـــﺔ ﺣﺮﻛﺘـــﮫ ـــﺔ و ﻤﻜـــﻦ رؤ ـــﻢ ﺘﺤـــﺮك ﻓـــﻲ اﻟﺴـــﻤﺎء اﻟﻠ ﻠ أﺳـــﺮع ﻧ اﻟﻨﺴـــﺒ ﺔ اﻟﻜﺒـــ ة ﻣـــﻊ ﺗﻐـــ ﻣﻮﺿـــﻌﮫ ﺑـــ اﻻرﺻﺎد اﻟﻤﺘﻌﺎﻗ ﺔ - ﻤﺎ ﻫﻮ ﻣﻮﺿﺢ ﺎﻟﻠﻮن اﻷ ﻤﺮواﻷﺻﻔﺮواﻷزرق . ] ESO/DSS2−Acknowledgement:DavideDeMartin—E−RedDots [