Ngokuqinisekileyo wakhe wambona omnye Iinkwenkwezi ezidubulayo Kwaye wenze into eqhelekileyo ukwenza umnqweno. Ngobusuku obuneenkwenkwezi, isibhakabhaka esicacileyo sinokubonwa ngokudubula kweenkwenkwezi, ngakumbi ngamaxesha athile onyaka. Nangona kunjalo, yintoni ngokwenene inkwenkwezi yokudubula? Ngaba inokuba yingozi? Ivela phi?
Kule nqaku siza kukuxelela yonke into ofuna ukuyifumana malunga neenkwenkwezi zokudubula, imvelaphi yayo, iimpawu kunye nomdla.
Yintoni inkwenkwezi yokudubula?
Inkwenkwezi yokudubula (okanye iimeteor, ezifanayo) yincinci encinci (ihlala iphakathi kweemilimitha kunye neesentimitha ezimbalwa). Ukungena kumoya ojikeleze umhlaba ngesantya esiphezulu, "bayatsha" ngenxa yokuxabana komoya (enyanisweni, ukukhanya kubangelwa yi-ionization) kwaye bavelisa indlela elula edlula ngokukhawuleza esibhakabhakeni, esiyibiza ngokuba yinkwenkwezi yokudubula.
Ukubonakala kwayo kwahluke kakhulu. Banokukhanya kakhulu okanye kancinci. Umzila wayo unokuba mfutshane okanye ubude. Abanye bashiya umzila oqaqambileyo okwethutyana, ngelixa abanye bengashiyi. Zihlala zikhawuleza kakhulu (ziyanyamalala ngaphambi kokuba sibe nexesha lokuthetha!). Kodwa ezinye ziyacotha kwaye zinokuhlala imizuzwana embalwa. Ngamanye amaxesha babonisa imibala: bomvu, luhlaza, luhlaza, njl. Ngokwemichiza yeemeteor. Imvelaphi yala masuntswana ikwii-comets, kwaye ii-comets ziphulukana nezinto zazo kwaye zishiye ngasemva.
Ukuba isuntswana likhulu kakhulu (iisentimitha ezimbalwa), inkwenkwezi yokudubula iya kukhanya kakhulu, ibizwa ngokuba ngumlilo. Oko sikubonayo ziibhola zomoya omoya ojikeleze bona. Ukuqaqamba kweemoto kuyamangalisa, kubenza babonakale bebahle ngakumbi nasemini. Abanye banokuqhekeka emendweni wabo, babonise ukukhanya okanye ukuqhuma okuncinci, okanye benze izandi. Bahlala beshiya umzila oqhubekayo (lo ngumzila womoya osiweyo abashiya ngasemva) okanye umsi. Ngamanye amaxesha zinokuqaqamba ngokwaneleyo ukuze zibonwe ngasemva kwamafu, ngamanye amaxesha sinokubona amafu ekhanya okomzuzwana.
Banokubonwa nini?
Iinkwenkwezi zokudubula zinokujongwa nakuphi na ubusuku obucacileyo, nangona kubusuku obuthile bonyaka, zininzi kwaye ukungqubana kwemozulu kunokutshisa iimeteor ezinobunzima beekhilogram ezininzi. Nangona kunjalo, ukuba isuntswana likhulu kakhulu, alinakho ukubola ngokupheleleyo kwaye lifikelele kumphezulu womhlaba. Ke le meteor ibizwa ngokuba yimeteorite. Iplanethi yethu ifumana iimeteorites ezinobungakanani obuncinci kunye nangaphezulu.
Enye yeemvula ezinkulu zeemeteor yimeko yePerseids, eyaziwa ngokuba ziinyembezi zikaSaint Lawrence. Apho sinokubabona esibhakabhakeni phakathi ku-Agasti ngamathuba amakhulu.
Ukuba ufuna ukubona inkwenkwezi yokudubula, kuya kufuneka uthathele ingqalelo ezinye iingcebiso. Akukhuselekanga ukuphuma uye endle ujonge esibhakabhakeni kwaye ubone inkwenkwezi edubulayo. Kodwa ewe, ngokulandela ezi ngcebiso, sinokonyusa amathuba okubona enye. Makhe sibone ukuba zeziphi ezi ngcebiso:
- Kuya kufuneka ushiye isixeko ebusuku kwaye ujonge indawo yokujonga ebaleni apho isibhakabhaka sicacile kwaye akukho kungcoliseka okanye ukukhanya okuncinci. Enye yeengxaki ezinkulu kule mihla yokuba sikwazi ukubona isibhakabhaka esineenkwenkwezi sihlala kwindawo yongcoliseko lokukhanya olubangelwa zizixeko. Kuya kufuneka siyiqonde into yokuba ubukho bokukhanya kwezibane kuthintela isibhakabhaka ebusuku. Ke ngoko, ukuba isixeko esihlala kuso sixinene kwaye siqaqambile, kuyakufuneka sihambele kude ngokwaneleyo ukuze singasichaphazeli.
- Kubalulekile ukuba isibhakabhaka sicace gcaKuba kukho amafu kuyo, siya kuba nakho ukubona iinkwenkwezi. Akukhuthazwanga kakhulu ngeenkwenkwezi zokudubula ngexesha lobusuku benyanga. Kungenxa yokuba ukubonakaliswa kwenyanga epheleleyo nako kunokubangela ungcoliseko lokukhanya kwaye kunokubangela ukuba singaboni ezinye iinkwenkwezi kufutshane nalo.
- Into efanelekileyo kukujonga ubusuku obucace gca nenyanga entsha.
- Akukho kusetyenziswa kwee-binoculars okanye iiteleskopu. Ukujongwa ngokuthe ngqo kusebenza ngakumbi xa kusenziwa ngamehlo kwaye xa amehlo akho sele elungelelanisile ebumnyameni nakwinkwenkwezi.
Imvelaphi kunye nembali yenkwenkwezi yokudubula
Iinkwenkwezi zokudubula zibonakala ngathi ziinkwenkwezi ezikude ezikude ezidlula esibhakabhakeni ebusuku. Nangona kunjalo, inkwenkwezi yokudubula ayisiyo nkwenkwezi konke konke kwaye ayikude kakhulu. Kumaxesha amandulo, abantu babecinga ukuba iimeteor ziyinxalenye yemozulu, njengombane okanye inkungu eshinyeneyo. Kodwa ngoku siyazi ukuba iinkwenkwezi zokudubula zizinto ezivela kwindawo engaphandle. Iziqwengana zerwala ezinobungakanani obahlukeneyo ezidada emajukujukwini. Amanye ala matye, abizwa ngokuba zii <em> meteoroid, atsalwa emhlabeni nasemoyeni. Umtsalane ubangelwa yinxalenye yesenzo somxhuzulane woMhlaba, ke kwiiplanethi ezinkulu, ezi zinto zinokutsalwa.
La matye (ubukhulu becala ubukhulu beesanti) asondela emhlabeni ngesantya esifikelela kuma-80 eekhilomitha ngomzuzwana, kwaye ukubambana komoya kuyabatshisa bade bakhanye njengeenkwenkwezi. Xa ubona inkwenkwezi yokudubula, ujonge imeteor evutha emoyeni. Kodwa kuya kufuneka ubone inkwenkwezi yokudubula ngokukhawuleza, kuba zihlala zingapheli ngaphezu komzuzwana okanye ezimbini ngaphambi kokuba ziphele ngokupheleleyo. Ezinye iimeteor ezifika eMhlabeni azigqitywanga ngokupheleleyo kumoya wethu. Malunga nezigidi ezingama-75 zeemeteor ziyangqubana emoyeni wethu yonke imihla.
Eminye iminqweno
Kufuneka sitsho ukuba ukukhanya kunye nobuninzi beenkwenkwezi zokudubula ziyahluka kakhulu. Sibona inani elikhulu leenkwenkwezi ezincinci, ezinobukhaphukhaphu obuncinci, kunye nenani elincinci lazo ezingakhanyi kangako kwaye ke zikhulu.
Xa inkwenkwezi yokudubula inkulu ngokwaneleyo, sinokwazi ukuba ishiya umkhondo womoya we-ionized onokuhlala okwemizuzu embalwa. Umsila weenkwenkwezi zokudubula uyakhazimla kwaye umbala wawo uxhomekeke kwirhasi yeionisi. Umzekelo, umzila oluhlaza unokubangelwa yioksijini yeoyoni (yeatmosferi). Ngapha koko, izinto ezinomphunga kwinkwenkwezi yokudubula ziya kuvelisa umbala ohambelana nokubonakala kwayo, kwaye kuxhomekeke kubushushu obufikelelweyo ngexesha lokuwa.
Ndiyathemba ukuba olu lwazi ungafunda ngakumbi malunga neenkwenkwezi zokudubula kunye neempawu zazo.