Free Astronomy Magazine January-February 2026 ARABIC VERSION

JANUARY-FEBRUARY2026 A moon-forming disk around a massive planet byNASA/ESA/CSA, LauraBetz, RayVillard, Christine Pulliam ASA’sJamesWebbSpaceTele- scopehasprovidedthefirst direct measurements of the chemicalandphysicalpropertiesof a potential moon-forming disk en- circlinga large exoplanet. The car- bon-rich disk surrounding the world called CT Cha b, which is located625light- yearsawayfromEarth,is a possible construction yard for moons, although no moons are de- tected intheWebb data.Theyoung star the planet orbits is only 2 mil- lion years old and still accreting cir- cumstellar material. However, the circumplanetary disk discovered by Webb is not part of the larger ac- cretiondiskaroundthecentralstar. ﻗﺮص ﻟﺘ ﻮﻳﻦ ا ﻷﻗﻤﺎر ﺣﻮل ﻮﻛﺐﻋﻤﻼق : ﻘﻠﻢ ﺎرﺮا ﻓ ﺮاﻟﻮرا ﺑ ، راي ﺑﻮﻟ ﺎم ﻓ ﻼرد، ﻛﺮﺴﺘ ﻗﺪم ﺗﻠﺴـﻜﻮب ﺟـﻴﻤﺲ وﻳـﺐ اﻟﻔﻀـﺎﺋﻲ اﻟﺘﺎﺑﻊ ﻟﻮﻛﺎﻟﺔ ﻧﺎﺳﺎ أول ﻗﻴﺎﺳـﺎت ﻣﺒـﺎﴍة ﻟﻠﺨﺼﺎﺋﺺ اﻟﻜﻴﻤﻴﺎﺋﻴﺔ واﻟﻔﻴﺰﻳﺎﺋﻴﺔ ﻟﻘـﺮص ﻣﺤﺘﻤﻞ ﻟﺘﻜﻮّن ﻗﻤﺮ ﻳﺤﻴﻂ ﺑﻜﻮﻛـﺐ ﺧـﺎرج ا ﺠﻤﻮﻋﺔ اﻟﺸﻤﺴﻴﺔ ﺿﺨﻢ . اﻟﻘﺮص اﻟﻐﻨـﻲ ﺑﺎﻟﻜﺮﺑﻮن ا ﺤﻴﻂ ﺑﺎﻟﻜﻮﻛﺐ ا ﻌﺮوف ﺑﺎﺳـﻢ ﺑﺎﻟﻜﺮﺑﻮن ا ﺤﻴﻂ ﺑﺎﻟﻜﻮﻛﺐ ا ﻌﺮوف ﺑﺎﺳـﻢ CT Cha b اﻟﺬي ﻳﺒﻌﺪ ﻋﻦ اﻷرض ﻧﺤـﻮ 625 ﺳﻨﺔ ﺿﻮﺋﻴﺔ ﻳﻌﺪ ﻣﻮﻗﻌﺎُ ﻣﺤـﺘﻤﻼُ ﻟﺘﻜـﻮﻳﻦ أﻗﻤﺎر رﻏﻢ ﻋﺪم رﺻﺪ أي أﻗﻤـﺎر ﰲ ﺑﻴﺎﻧـﺎت ﺗﻠﺴﻜﻮب وﻳﺐ ﺣﺘﻰ اﻵن . اﻟﻨﺠﻢ اﻟﺸﺎب اﻟﺬي ﻳﺪور ﺣﻮﻟﻪ ﻫﺬا اﻟﻜﻮﻛﺐ ﻳﺒﻠﻎ ﻋﻤـﺮه ﻧﺤـﻮ ﻳﺪور ﺣﻮﻟﻪ ﻫﺬا اﻟﻜﻮﻛﺐ ﻳﺒﻠﻎ ﻋﻤـﺮه ﻧﺤـﻮ ﻣﻠﻴﻮﻧﻲ ﺳﻨﺔ ﻓﻘﻂ وﻻ ﻳـﺰال ﻳﺠﻤـﻊ ا ـﺎدة ا ﺤﻴﻄﺔ ﺑﻪ . وﻣﻊ ذﻟﻚ، ﻓﺈن اﻟﻘﺮص ا ﺤﻴﻂ ﺑﺎﻟﻜﻮﻛﺐ اﻟﺬي اﻛﺘﺸﻔﻪ وﻳﺐ ﻟﻴﺲ ﺟﺰءًا ﻣﻦ اﻟﻘﺮص اﻷﻛﱪ ا ﻤﺘﺪ ﺣﻮل اﻟﻨﺠﻢ ا ﺮﻛﺰي . - ﻳﻨﺎﻳﺮ ﻓﺒﺮﺍﻳﺮ 2 0 2 6 Ethane Acetylene Propyne Hydrogen Cyanide Diacetylene C 2 H 6 C 2 H 2 C 3 H 4 HCN C 4 H 2