Free Astronomy Magazine July-August 2025 ARABIC VERSION

The most detailed image of planetary nebula NGC 1514 byNASA/ESA/CSA ClaireBlome5Christine Pulliam as and dust ejected bya dying star at the heart of NGC1514cameintocom- plete focus thanks to mid-infrared data from NASA’s JamesWebb SpaceTelescope.Itsrings,whichare onlydetectedininfraredlight,now look like “fuzzy” clumps arranged in tangled patterns, and a network ofclearerholesclosetothecentral stars shows where faster material punched through. “Before Webb, weweren’tabletodetectmostof this material, let alone observe itso clearly,” said Mike Ressler, a re- searcher and project scientist for Webb’s MIRI (Mid-Infrared Instru- ment) at NASA’s Jet Propulsion Lab- oratoryinsouthernCalifornia.He discovered the rings around NGC 1514in2010whenheexamined the image (at left) from NASA’s Wide- field Infrared Survey Explorer (WISE). “With MIRI’s data, we can nowcomprehensivelyexaminethe JULY-AUGUST2025 أﻛ اﻟﺼﻮرﺗﻔﺼ ﻼً ﻟﻠﺴﺪ ﻢ اﻟ ﻮﻛ NGC 1514 : ﻘﻠﻢ ﺑﻮﻟ ﺎم ﻠ ﻠﻮم ﻛﺮﺴﺘ و ﺎﻟﺔ ﻧﺎﺳﺎ / و ﺎﻟﺔ اﻟﻔﻀﺎء اﻷوروﺑ ﺔ / و ﺎﻟﺔ اﻟﻔﻀﺎء اﻟﻜﻨﺪ ﺔ أﻋﻠــﻰ ﺻــﻮرﺎن ﺎﻷﺷــﻌﺔ ﺗﺤــﺖ اﻟــ ـ ﻤﺮاء ــﻮﻛ ﻟﻠﺴــﺪ ﻢ اﻟ NGC 1514 . رﺻــﺪ ﻣــﻦ ﻣﺴﺘﻜﺸــﻒ اﻟﻤﺴــﺢ ﺎﻷﺷــــﻌﺔ ﺗﺤــــﺖ اﻟــــ ـ ﻤﺮاء واﺳــــﻊ اﻟﻤﺠــــﺎل ــــﺲ) ( وا اﻟﺘــــﺎﺑﻊ ﻟ ﻮ ﺎﻟــــﺔ ﻧﺎﺳــــﺎ . ﺻــــﻮرة أﻛــــ دﻗــــﺔ ﻋﻠــــﻰ اﻟ ﻤــــ وﺗﻔﺼـ ﻼً، ﺗــ ز ﻤﺎﻟــﮫ اﻷﺧــﺎذ ــﺐ اﻟﻔﻀــﺎﺋﻲ اﻟﺘـﺎﺑﻊ ﻟ ﻣـﻦ ﺗﻠﺴــ ﻮبﺟــ ﻤﺲو ﻮ ﺎﻟــﺔ ﻧﺎﺳـﺎ . ﻈﻬــﺮ ﺗﻠﺴــ ﻮب و ﺐﺣﻠﻘﺎﺗﮫ ﻜﺘﻞ ﻏ ﺎرﻣﻌﻘﺪة . ﻤﺎ ﺴﻬﻞ رؤ ﺔ ﺛﻘﻮب ﻓﻲ اﻟﻤﻨﻄﻘﺔ اﻟﻤﺮﻛﺰ ﺔ اﻟﻮرد ﺔ اﻟﺰاﻫ ﺔ . ﻔﻀــﻞ ﺑﻴﺎﻧــﺎت اﻷﺷــﻌﺔ ﺗﺤــﺖ اﻟﺤﻤــﺮاء ا ﺘﻮﺳ ـﻄﺔ ﻣ ـﻦ ﺗﻠﺴ ـﻜﻮب ﺟ ـﻴﻤﺲ وﻳ ـﺐ اﻟﻔﻀﺎﺋﻲ اﻟﺘﺎﺑﻊ ﻟ ﻮﻛﺎﻟﺔ ﻧﺎﺳﺎ ﺑﺮزت اﻟﻐـﺎزات واﻟﻐﺒﺎر ا ﻘﺬوﻓﺔ ﻣﻦ ﻧﺠﻢ ﻳـ ـ ﺤﺘﴬ ﰲ ﻗﻠـﺐ اﻟﺴﺪﻳﻢ اﻟﻜﻮﻛﺒﻲ NGC1514 ﺑﺸـﻜﻞ ﻛﺎﻣـﻞ ﺗﺒـﺪو ﺣﻠﻘﺎﺗﻬـﺎ اﻟﺘـﻲ ﻻ ﺗ ﺮﺻـ ﺪ إﻻ ﰲ ﺿــﻮء اﻷﺷـﻌﺔ ﺗﺤــﺖ اﻟﺤﻤـﺮاء اﻵن وﻛﺄﻧﻬـﺎ ﻛﺘــﻞ ﻣﺮﺗ " ﺿﺒﺎﺑﻴﺔ " ﺒﺔ ﰲ أﻧﻤﺎط ﻣﺘﺸﺎﺑﻜﺔ وﺗُﻈﻬﺮ ﺷﺒﻜﺔ ﻣﻦ اﻟﻔﺠﻮات اﻟﻮاﺿﺤﺔ اﻟﻘﺮﻳﺒـﺔ ﻣـﻦ اﻟﻨﺠﻮم ا ﺮﻛﺰﻳﺔ أﻣﺎﻛﻦ اﺧﱰاق ا ﻮاد اﻷﴎع . ﻳﻘﻮل ﻣﺎﻳﻚ رﻳﺴﻠﺮ اﻟﺒﺎﺣﺚ وﻋﺎﻟﻢ ﻣ ـ ﴩوع ﰲ ﺟﻬـﺎز اﻷﺷـﻌﺔ ﺗﺤـﺖ اﻟﺤﻤـﺮاء ا ﺘﻮﺳـﻄﺔ ) MIRI ( اﻟﺘﺎﺑﻊ ﻟﺘﻠﺴـﻜﻮب وﻳـﺐ ﰲ ﻣﺨﺘـﱪ ﺟﻬـﺎز اﻷﺷـﻌﺔ ﺗﺤـﺖ اﻟﺤﻤـﺮاء ا ﺘﻮﺳـﻄﺔ ( ﻣ ي ) اﻟﺘـﺎﺑﻊ ﻟﺘﻠﺴـﻜﻮب وﻳـﺐ ﰲ ﻣﺨﺘـﱪ اﻟﺪﻓﻊ اﻟﻨﻔﺎث اﻟﺘﺎﺑﻊ ﻟ ﻮﻛﺎﻟﺔ ﻧﺎﺳـﺎ ﰲ ﺟﻨـﻮب ﻛﺎﻟﻴﻔﻮرﻧﻴﺎ " : ﻗﺒﻞ ﺗﻠﺴﻜﻮب وﻳﺐ ﻟﻢ ﻳﻜﻦ ﻣ ﻦ ا ﻤﻜﻦ اﻛﺘﺸﺎف ﻣﻌﻈﻢ ﻫﺬه ا ﻮاد ﻧﺎﻫﻴﻚ ﻋﻦ ـــ ". ﺷﺎﻣﻞ رﺻﺪﻫﺎ ﺑﻮﺿﻮح ." اﻛﺘﺸﻒ اﻟﺤﻠﻘـﺎت ﺣـﻮل NGC 1514 ﰲ ﻋـﺎم 2010 ﻋﻨ ـﺪﻣﺎ ﻓﺤـﺺ اﻟﺼﻮرة ) ﻋﲆ اﻟﻴﺴﺎر ( ﻣﻦ ﻣﺴﺘﻜﺸﻒ ا ﺴﺢ ﺑﺎﻷﺷﻌﺔ ﺗﺤﺖ اﻟﺤﻤﺮاء واﺳﻊ ا ﺠﺎل ( واﻳﺲ) اﻟﺘﺎﺑﻊ ﻟ ﻮﻛﺎﻟﺔ ﻧﺎﺳﺎ وأﺿﺎف " : ﺑﻔﻀﻞ ﺑﻴﺎﻧـﺎت ﻣﻌﻬﺪ أﺑﺤـﺎث ﻣـ ي، أﺻـﺒﺢ ﺑﺈﻣﻜﺎﻧﻨـﺎ اﻵن ﻳﻮﻟﻴﻮ - ﺃﻏﺴﻄﺲ 2 0 2 5 .[NASA,ESA,CSA,STScI,NASA-JPL,Caltech,UCLA,MichaelRessler (NASA-JPL), Dave Jones (IAC)]