Free Astronomy Magazine March-April 2026 ARABIC VERSION

O The greenish glow ofComet3I /ATLAS byNOIRLab,BryceBolin,JosieFenske n26November2025,scien- tistsusedtheGeminiMulti- ObjectSpectrograph(GMOS) on Gemini North at Maunakea in Hawai’i to obtain images of the third-ever detected interstellar ob- ject, Comet 3I/ATLAS. The new ob- servations reveal how the comet has changed after making its closest ap- proachtotheSun.GeminiNorthis onehalfoftheInternationalGemini Observatory,partlyfundedbythe U.S. National Science Foundation (NSF) and operated by NSF NOIRLab. After emerging from behind theSun, 3I/ATLAS reappeared in the sky close to Zaniah, a triple-star system located in the constellation Virgo. These observations were taken as partofapublicoutreachinitiative organized by NSF NOIRLab in collab- oration with Shadow the Scientists, an initiative created to connect the public with scientists to engage in authentic scientific experiments, such as astronomy observing experi- encesonworld-classtelescopes.The scientific program was led by Bryce Bolin, a research scientist from Eu- rekaScientific.Thisimageiscom- MARCH-APRIL2026 ﻠﺔ ﻣﺠ FreeAstronomy ﺎﻟﻌﺮ ﺔ 18 اﻟﺘﻮﻫﺞ اﻷﺧﻀﺮﻟﻠﻤﺬﻧﺐ اﻟﻐﺎﻣﺾ 3I/ أﻃﻠﺲ : ﻘﻠﻢ وﺟﻮﺳﻲﻓ ﻨﻜﺴﻲ ﺑﺮا ﺲ ﺑﻮﻟ - ﻣﺨﺘ ﻧﻮﻳﺮﻻب ﻣﺮﺻﺪ ﺟﻴﻤﻴﻨﻲ اﻟﺪوﱄ ا ﻤﻮﱠ ل ﻣﻦ ا ﺆﺳﺴـﺔ اﻟﻮﻃﻨﻴﺔ ﻟﻠﻌﻠﻮم ﰲ اﻟﻮﻻﻳﺎت ا ﺘﺤﺪة وﻳُﺸﻐﱠ ﻞ ﺑﻮاﺳﻄﺔ ﻣﺨﺘﱪ ﻧﻮ . ﻳﺮﻻب ﺑﻌﺪ ﺧﺮوﺟﻪ ﻣـﻦ ﺧﻠـﻒ اﻟﺸـﻤﺲ ﻇﻬـﺮ ا ـﺬﻧﺐ 3I/ أﻃﻠـﺲ اً ﻣﺠﺪد ﰲ اﻟﺴﻤﺎء ﺑﺎﻟﻘﺮب ﻣﻦ اﻟﻨﺠﻢ زاﻧﻴـﺎه وﻫﻮ ﻧﻈﺎم ﻧﺠﻤـﻲ ﺛﻼﺛـﻲ ﻳﻘـﻊ ﰲ ﻛﻮﻛﺒـﺔ اﻟﻌﺬراء . أُﺟﺮﻳﺖ ﻫﺬه اﻷرﺻﺎد ﺿﻤﻦ ﻣﺒﺎدرة ﺗﻮاﺻﻞ ﻋﻠﻤﻲ ﺟﻤـﺎﻫ ي ﻧﻈﻤﻬـﺎ ﻣﺨﺘـﱪ ﻧ ـﻮﻳﺮﻻب ﺑﺎﻟﺘﻌــﺎون ﻣــﻊ ﻣﺒ ـﺎدرة راﻓ ـﻖ اﻟﻌﻠﻤﺎئ Scientists ، وﻫﻲ ﻣﺒﺎدرة ﺗﻬ ﺪف إﱃ اﺳـﺘﺨﺪم ﻋﻠﻤﺎء ﻣﻄﻴﺎف اﻷﺟ ﺮا م اﻟﻔﻠﻜﻴـﺔ ( ﺟﻴﻤﻮس ) ا ﺜﺒﺖ ﻋﲆ ﺗﻠﺴـﻜﻮب ﺟﻴﻤﻴﻨـﻲ ﻧﻮرث ﻋﲆ ﺟﺒﻞ ﰲ ﻣﺎوﻧﺎﻛﻴﺎ ﻫﺎواي ﺑﺘـﺎرﻳﺦ 26 ﻧـﻮﻓﻤﱪ 2025 ﻻ ﻟﺘﻘــﺎط ﺻـﻮر ﻟﺜﺎﻟـﺚ ﺟﺴﻢ ﺑ ﻧﺠﻤﻲ ﻳﻜﺘﺸﻒ ﻋﲆ اﻹﻃﻼق وﻫﻮ ا ﺬﻧﺐ 3I/ أﻃﻠﺲ . ﺗﻜﺸﻒ اﻷرﺻﺎد اﻟﺠﺪﻳﺪة ﻛﻴﻒ ﺗﻐ ا ﺬﻧﺐ ﺑﻌﺪ ﻣ ﺮوره ﺑﺄ ﻗﺮب ﻧﻘﻄـﺔ ﻟﻪ ﻣﻦ اﻟﺸﻤﺲ ) اﻟﺤﻀﻴﺾ اﻟﺸﻤﴘ ﻌﺪ ﻳ(. ﺗﻠﺴﻜﻮب ﺟﻴﻤﻴﻨﻲ ﻧﻮرث أﺣـﺪ ﺗﻠﺴـﻜﻮﺑﺎت ﺟﻴﻤﻴﻨﻲ اﻟﺪوﱄ، ا ﻤﻮﱠ ل ﺟﺰﺋﻴًﺎ ﻣﻦ ا ﺆﺳﺴـﺔ اﻟﻌﻠﻤــﺎء وﻫــﻲ ﻣﺒ ـﺎدرة ﺗﻬ ـﺪف إﱃ رﺑ ـﻂ اﻟﺠﻤﻬﻮر ﺑﺎﻟﻌﻠﻤـﺎء ﻟﻠﻤﺸـﺎرﻛﺔ ﰲ ﺗﺠـﺎرب ﻋﻠﻤﻴﺔ ﺣﻘﻴﻘﻴﺔ ﻣﺜﻞ ﺧﱪات اﻟﺮﺻﺪ اﻟﻔﻠﻜـﻲ ﺑﺎﺳﺘﺨﺪام ﺗﻠﺴﻜﻮﺑﺎت ﻋﺎ ﻴﺔ ﻣﺘﻘﺪﻣﺔ ﻗـﺎد . اﻟﱪﻧﺎﻣﺞ اﻟﻌﻠﻤﻲ ﺑﺮاﻳﺲ ﺑـﻮﻟ اﻟﺒﺎﺣـﺚ ﰲ ﻣﺆﺳﺴـﺔ ﻳﻮرﻳﻜــﺎ اﻟﻌﻠﻤﻴـﺔ ﺘﻜـﻮ ﺗ. ن ﻫـﺬه اﻟﺼﻮرة ﻣﻦ ﺗﻌﺮﻳﻀﺎت اﻟﺘ ﻘﻄﺖ ﻋﱪ أ رﺑﻌـﺔ ﻣﺮﺷﺤﺎت ﻟﻮﻧﻴﺔ ﺗﺸـﻤﻞ : اﻷزرق واﻷﺧﴬـ واﻟﱪﺗﻘﺎﱄ . واﻷﺣﻤﺮ أﺛﻨـﺎء اﻟﺘﺼـﻮﻳﺮ ﻳﺒﻘـﻰ ا ــﺬﻧﺐ ﻣﺜﺒﺘًــﺎ ﰲ ﻣﺮﻛــﺰ ﻣﺠــﺎل رؤﻳــﺔ - ﻣﺎﺭﺱ ﺃﺑﺮﻳﻞ 2 0 2 6