Free Astronomy Magazine November-December 2022 ARABIC VERSION

P ages of Didy- re-impact im- mos, taken with the Discovery Channel Tele- scope at Lowell Observatory, showing its mo- tion in the sky. The white arrows point to four ad- ditional asteroids whose motion is slow but percep- tible. [Lowell Observatory, as- tronomer Nick Moskowitz’s hand] T recorded by Tim Lister using his extraordinary series was the 1-meter telescope at the South Africa Astronomical Observatory, SAAO. A brightness increase is al- ready evident in image #5 taken at 11:14:08, implying that the pre- dicted impact time was right on. Image #16 corresponds approxi- mately to maximum brightness, 7 min 47 secs after impact, and a clear detachment of the debris is visible on image #22, 5 minutes after. The total event lasted for about 13 minutes. [Tim Lister] ﻣﺠﻠﺔ Astronomy ﺎﻟﻌﺮ ﺔ ٧ ﺻــــــــــــــــــــــﻮرﻣـــــــــــــــــــــــﺎ ﻗﺒـــــــــــــــــــــــﻞ اﻻﺻــــــــﻄﺪام ﻟﻠ ﻮ ﻜــــــــﺐ ـــــــــﺪ ﻤﻮس د اﻟﺘﻘﻄـــــــــﺖ ﺎﺳـــــــــﺘﺨﺪام ﺗﻠﺴـــــــــ ﻮب د ﺴــــــــــــــﻜﻔﺮيﺷــــــــــــــﺎﻧﻴﻞ ﻓـــــــــــﻲﻣﺮﺻـــــــــــﺪ ﻟﻮوﻳـــــــــــﻞ ﺗُ ﻈﻬــــــــــﺮﺣﺮﻛﺘــــــــــﮫ ﻓــــــــــﻲ اﻟﺴــــــــــــــــــــــــــــﻤﺎء . ﺗﺸــــــــــــــــــــــــــــ اﻷﺳــــــﻬﻢ إﻟــــــﻰ أرﻌـــــــﺔ ـــــــــــــــــﺎت إﺿــــــــــــــــــﺎﻓ ﺔ ﻮ ﻜ ﺣﺮﻛﺘﻬـــﺎ ﺗﻈﻬـــﺮ ﻄﻴﺌـــﺔ ﻟﻜﻨ ﻬﺎ ﻣﺤﺴﻮﺳﺔ . ﺗـــــــــﻢ ﺗﺴـــــــــﺠﻴﻞ ﻫـــــــــﺬﻩ اﻟﺴﻠﺴـــــــــﻠﺔ اﻻﺳـــــــــﺘﺜﻨﺎﺋ ﺔ ﺎﺳـﺘﺨﺪام اﻟ ﺘﻠﺴـ ﻮب ـﺎﻟﻎ اﻟ اً ﻣـ اً واﺣـﺪ ﻓـﻲ اﻟﻤﺮﺻﺪ اﻟﻔﻠﻜﻲ ﺑﺠﻨﻮب إﻓﺮ ﻘ ﺎ ﺗﺘﺠﻠﻰ ز ﺎدة اﻟﺴﻄﻮع ﻓﻲ اﻟﺼﻮرة رﻗﻢ )٥( أن ﻣﻤﺎ ﻌ ـــــــــﺎن ﻣﻨﺎﺳـــــــــ ًﺎ وﻗـــــــــﺖ اﻻﺻـــــــــﻄﺪام اﻟﻤﺘﻮﻗـــــــــﻊ ﺗﺘﻮاﻓـﻖ اﻟﺼــﻮرة رﻗـﻢ )١٦( ًــﺎ ﻣـﻊ أﻗﺼــﻰ ﺗﻘﺮ ﺳﻄﻮع ، ٧ دﻗﺎﺋﻖ و ٤٧ ﺛﺎﻧ ﺔ ﻌﺪ اﻻﺻـﻄﺪام ـــــﺔ اﻧﻔﺼــــﺎل واﺿـــــﺢ ﻟﻠﺤﻄــــﺎم ﻓـــــﻲ و ﻤﻜــــﻦ رؤ اﻟﺼــﻮرة رﻗــﻢ )٢٢( ، ﻌــﺪ ﻤــﺲ . دﻗــﺎﺋﻖ ﻟﻘــﺪ اﺳﺘﻤﺮاﻟ ـ ﺤﺪث ﻟﻤﺪة ١٣ دﻗ ﻘﺔ ﺗﻘﺮ ًﺎ . ﻧﻮﻓﻤ دﻳﺴﻤ 2022