Namhlanje siza kuthetha ngenye yeemeteor zeeshawa ezisebenza kakhulu kwaye kufanelekile ukuzibona. Imalunga neqabaka Geminids. Liqela leenkwenkwezi ezibonakala ngathi zivela kwindawo yeqela leGemini, yiyo loo nto igama layo, kwaye zibonakala kwasekuqaleni ukuya phakathi kuDisemba. Inencopho eyenzeka nge-14 yenyanga nganye ngonyaka kwaye lixesha apho ungabona khona iimeteor ezili-100 okanye nangaphezulu ngeyure.
Kweli nqaku siza kukuxelela yonke into oyifunayo malunga neeGeminids, iimpawu zazo kunye nendlela yokuzibona.
Iimpawu eziphambili
Logama iimeko zezulu zilungile, zinokubonakala okwaneleyo kwaye bubusuku obungenanyanga, banokubonakala ngaphezulu kwe-100 zeemeteor ngeyure ngexesha lamanqwanqwa eeGeminids. Oku kuyenza ibe sesona sihlambi seemeteor sisebenzayo esibonwayo namhlanje. Lo mlinganiso ukwinqanaba elifanayo nee-quadrantids ezivela kwinyanga yoMqungu.
Ukongeza kwimitha ebukhali, amandla omxhuzulane avela elangeni nawo anokugqobhoza kungqameko lwee-comets okanye ii-asteroids. Iintsalela zihlala ekujikelezeni kwazo kwaye zihamba ngesantya esikhawulezileyo, kwaye xa uMhlaba usondele ngokwaneleyo, zingena emoyeni. Ukukhuhlana okubangelwe kukudibana neegesi ezisemoyeni kubenza ukuba babonakale njengokukhanya kwesibane kwindawo ephezulu, kwaye ubushushu buyenza umphunga imeteor.
Iziqwengana kunqabile ukuba ziwele emhlabeni. Kule meko, zibizwa ngokuba zii <em> meteorites, kwaye xa zisesemjikelezweni, zibizwa ngokuba zii <em> meteoroid. Ngale ndlela, inkunkuma yahlulwa-hlulwa, kuxhomekeka ekubeni ingaphandle kweatmosfera okanye ingaphakathi kweatmosfera, okanye ekugqibeleni iwele emhlabeni.
Imvelaphi yeeGeminids
IiGeminids liqela leemeteor zeeshawa ezingaqhelekanga kwimvelaphi yazo engeyiyo i-comet, kodwa yi-asteroid. I-asteroid yaziwa ngegama lePhaeton kwaye yafunyanwa ngo-1983, phantse zonke iimitha zemeteor zenziwe zii-comets kwaye, ke, iiGeminids zizodwa.
Izazi ngeenkwenkwezi azivumelani nobume bale nto kuba kubonakala ngathi zinempawu ezixutyiweyo ze-asteroid-comet, nangona ukuqaphela kungakhange kuveze ikhonkco eliqhelekileyo lePeteton. Umahluko ngokubanzi phakathi komzimba wasezulwini kunye nomnye kukuba ii-comets zihlala zenziwe ngumkhenkce, ngelixa ii-asteroids kufuneka zibe ngamatye.
Kukho intelekelelo yokuba i-Phaeton yayingu-comet kwiminyaka engama-2000 eyadlulayo, kodwa xa yayisondele kakhulu elangeni, ubunzima bayo babangela intlekele enkulu, i-orbit yatshintsha kakhulu, ishiya ngasemva inqwaba yenkunkuma, namhlanje siyibiza ngokuba yiGeminids.
Kubonakala ngathi imvula emajukujukwini iGemini khange ivele kwangoko emva kwalo msitho, kuba irekhodi lokuqala lokubonakala kwabo lisusela emva ngo-1862. njenge Ukunyanga kwaye ooLeonid ngokwabo, bebekhona ngeenkulungwane.
Inyani yile yokuba nokuba i-meteor shawari inxulumene nobutyobo obushiywe zii-asteroids kunye nee-comets, akusoloko kunokwenzeka ukubona inkunkuma ishiywe yindlela yokugqibela yonyaka.
Inkunkuma evelise imeteor yalo nyaka inokuba yenziwe kudala kwaye ihleli kwi-orbit okoko. Kodwa kufuneka siqwalasele ukuba ii-orbits azimanga, ziyatshintsha ngenxa yokunxibelelana nomxhuzulane nezinye izinto.
Inkcazo yeeGeminids
IiGeminids zibizwa njalo kuba zibonakala ngathi zivela kwinqanaba leqela leGemini elibizwa ngokuba likhazimla. Esi sisiphumo nje sokujonga, kuba ii-trajectories ziyafana kwaye zibonakala ziguqukele kude, njengeetreyini zikaloliwe. Kodwa inika igama layo yonke imvula enkulu yeemeteor, ke le meteor mesha ithiywe ngegama lekroza apho ikhoyo indawo ekhazimlayo.
Ishawa iqala ukubonakala nge-4 kaDisemba kwaye iqhubeke de kube li-17, inencopho yomsebenzi ejikeleze owe-13 okanye we-14.Ireyithi ye-zenith yeyure, isingqisho se-zenith okanye i-THZ linani leemeteor ngeyure kwiimeko ezifanelekileyo zokubonakala , kubandakanya isibhakabhaka esingenamafu nesingenanyanga.
Izinga le-zenith ye-Geminid meteor shower yenye yezona ziphezulu: Iimitha ezili-100-120 ngeyure, ebonisa ukuba iziqwenga ezishiywe yiPhaeton khange zichithakale kude kube ngoku. Ngapha koko, uqatshelo lubonisa ukuba inqanaba le-zenith lenyuke kancinci ukusukela oko kwafunyanwa imvula.
Isalathiso sabemi silinganisa ukuqaqamba kweendlela ezishiywe liqela leemeteor, kwaye ishawa ye-Gemini meteor ityheli. Kuxhomekeka kwizinto ezinje ngobunzima kunye nesantya semeteor, kwaye imelwe ngu-r.
Ixabiso laso lihlala lisetelwe ku-2, kodwa kwimodeli yemathematics ehlengahlengisiweyo kwindlela yokuziphatha kweGemini, ixabiso liyi-r = 2.4, eyi-2.6 ngexesha eliphezulu lomsebenzi. Ngokwalo, umbala omthubi ubonakalisa ubukho bentsimbi kunye nesodiyam ekwakhiweni kwamaqhekeza.
Nini kwaye njani ukuzijonga
Ukujonga iiGeminids sinokuya naphina emhlabeni. Banokubonakala kuzo zombini i-hemispheres, nangona inokubonakala ngokucacileyo ukusuka kumantla e-hemisphere. Imitha eqaqambileyo iqala ukubonakala emva kwemini, ngelixa kumazantsi omhlaba kufuneka ulinde ezinzulwini zobusuku. Njengakuyo nayiphi na ishawa yeenkwenkwezi, izinga leemeteor liyenyuka ngokuhamba kwexesha Ukuqaqamba kuphakeme kunesibhakabhaka. Amaxesha afanelekileyo okujonga ishawa yeemeteor ehambelana neeGeminids kuxa kusasa kude kuphume ilanga.
Ngexesha lasemini imvula iyaqhubeka, kodwa kunzima ngakumbi ukuyiqonda kuba isantya samaqhekeza asikhawulezi kakhulu xa kuthelekiswa nezinye iimvula zasemeteor. Eyona nto ibonwa kakuhle Zenziwe ngokukhetha indawo kude nongcoliseko lwesixeko kwaye ndinethemba lokuba ngenye imini akukho inyanga esibhakabhakeni kwaye sikwindawo entle. Iimeteor ziya kubonakala zininzi ngakumbi ngobusuku bobusuku.
Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga neeGeminids kunye neempawu zazo.