Sanadkii la soo dhaafay, astronomers waxay ogaadeen kumanaan ka mid ah kuwa hore aan horay loo aqoon u dhow, taas oo ah rikoor loogu talagalay dhammaan xilliyada kormeerka. Tan waxaa lagu soo sheegey majaladda dabeecadda.
Lixdii lixaad ee Maarso 2021, asterodka Asteroid Asuropsis wuxuu u soo dhowaaday dhulka masaafada ugu dhow sideed sano. Boos "oo ah dhexroor ah oo ah dhexroor dhan 340 mitir ayaa 16 milyan oo ka duulayay 16 milyan oo km meeraheena, oo loo arko inay yihiin masaafad aamin ah.
Sanadkii 2029, Apophoogaagu mar labaad soo laaban doonaa, markan kulankiisa Dhulka ma noqon doono mid aan dhib lahayn: asteret wuxuu ku habboonaan doonaa meeraha 30-40 kun oo km ah, iyadoo loo eegayo gaashafyada joodariga ah ee suufka ah ee lagu daaweeyo meeraha . Martida dhagaxa ayaa lagu arki karaa isha qaawan. Astronomers markii ugu horeysay taariikhda casriga ah waxay awoodi doontaa inay dhawrto asteroid weyn oo aad u dhow.
Ilaalinta Martyry
Span ee asteroid Apophis usbuucii hore wuxuu saynisyahano u yeeshay fursad wanaagsan oo ay ku tijaabiyaan nidaamka digniinta ee ku saabsan xaaladaha khatarta ah ee meelaha banaan ee madhan. Iyada oo leh telescopes gaar ah, saynisyahano ka kala socda qaybaha kala duwan ee dhulka ayaa kormeera cirka habeenkii oo waxay la socdaan walxaha u dhow dhulka ee matalaya qatarta suuragalka ah ee meeraheena. Isku dayga lagu fiirsanayo Apophis ayaa muujisay in kooxaha astynomers, qeyb ka mid ah adduunka oo aan ahayn, ay ka wada shaqeyn karaan ansixinta halista ka socota isku dhafka "dhagxaanta".Raadi asteroids
Dhammaan wakaaladaha ciqaaba ee dhulka waxay leeyihiin nidaam u gaar ah oo looga digo xaaladaha khatarta ah ee meelaha banaan ee madhan. Tusaale ahaan, NASA waxay isticmaashaa nidaamyada noocaas ah si ay u raadiyaan meel u dhow Dhulka asteroids-ka oo ay qiimeeyaan halista ay ku filan karto ilaa 1998. Inta lagu jiro waqtigan, shaqaalaha wakaaladda waxay ogaadeen 25,000 oo shay oo kale ah. Maaddaama ay dabeecadda u qortay, sanadkii la soo dhaafay waxay noqotay rikoor ku saabsan furitaanka. In kasta oo ay tahay tii 19-aad, taasoo saameyn ku yeelatay shaqada saynisyahano badan oo saynisyahanno badan, waa la helay waxaana loo keenay buug-yaraha 2958 horay loo yaqaan 'Earth asteroids'.
In ka badan kalabar meydadkaas ayaa ku guuleystey inay ogaato sahanka Catalina Sky Sky - saddex telescompes oo ku yaal Arizona. Telefoonada ayaa awood u leh inay ogaadaan xitaa xitaa asteroid gabi ahaanba 2020 CD3, dhexroor ka yar 3 mitir, oo qabtay culeyska dhulka. Satalaytka ku-meel-gaarka ah ee dhulka ayaa beeniyay xinjirowga culayska iyo bidix ee Orocentric Orbitt bishii Abriil ee sanadkii hore. Baaxadda xiddigta guud ee guud ee 2020 CD3 - 32m, Albedo - 0.1-0.6.
Arqalka mowduuca: Hay'adda Hay'adaha Yurub: Dunidu waxay halis gelineysaa 15 kun oo asteroids]
Dufcad kale oo u dhow Dhulka asteroids - 1152 shay, ayaa furay nidaamka telescope-ka ee 'Pan-Snorrs Telescope' ee Hawaii. Waxaa ka mid ah kuwa wax la yaab leh - 2020, oo aan ahayn asteroid, laakiin qayb ka mid ah waaxda dardargelinta "Caminarus" ee sahaminta 2 ee aaladda, ayaa lagu bilaabay meel bannaan 1966.
Qaar ka mid ah asteroids
Qaar ka mid ah walxaha u dhow ee dhulka ah ee laga helay 2020 waxay u yimaadeen dhulka masaafo dhow. Ugu yaraan 107 ka mid ah oo ay u gudbiyeen meeraheena meel fog, oo aad uga yar masaafada ilaa dayaxa.
Tusaale ahaan, Bishii Ogosto, Asteroid 2020 qg wuxuu duulay 2950 km oo ku saabsan Badweynta Hindiya. Iyo saddex bilood kadib, shay kale oo yar oo dhexroor ah oo ah 5-10 mitir - 2020 VT4, wuxuu ka gudbay kaliya 345 Km oo ka soo jeeda dhulka, kaasoo ka hooseeya jagada ISS. Sawirradii ugu horreeyay waxaa la helay 15 saacadood oo keliya ka dib markii uu u dhawaajiyay meelaheena. Haddii uu galay lakabyada adag ee jawiga, ka dib, ay u badan tahay, waa dhici lahaa.
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