Iyini ihexagon yeSaturn?

i-anomaly ku-saturn

Umkhathi usaqhubeka nokubathakasela abantu abawuphenyayo. Izinkanyezi, ama-meteor shower nezinye izenzakalo zezinkanyezi ezifanayo zikhanga kakhulu ososayensi. Nokho, kunenye yezimpicabadala ezithakazelisa kakhulu zesimiso sethu sonozungezilanga. Imayelana I-Saturn polar hexagon.

Kulesi sihloko sizokutshela ukuthi i-hexagon ye-Saturn iyini, umsuka wayo nezici zayo.

Iyini ihexagon yeSaturn

ihexagon yesaturn

I-hexagon, isici esiyingqayizivele esitholakala kuphela ngaphakathi kwesimiso sethu sonozungezilanga futhi ikakhulukazi ku-Saturn, isenzakalo esibangelwa isigxobo esiyingqayizivele seplanethi. Nakuba ulwazi oluqoqwe nguCassini lukhulise kakhulu ukuqonda kwethu iSaturn iyonke, ukwembula indida ngemuva kwalokhu kwakheka okungavamile ngaphakathi kwendawo egcwele igesi kusalokhu kuwumsebenzi oyinselele.

Lokhu okusanda kutholwa esikhuluma ngakho akufani nenqwaba yezinkanyezi namaplanethi okwabonwa ngesikhathi sokudlondlobala kwesayensi yezinkanyezi. Yahlala ifihliwe ngenxa yokulinganiselwa kwamathuluzi atholakala emakhulwini eminyaka adlule. Kwaze kwaba ngama-1980s, lapho uphenyo lwe-Voyager lusatshalaliswa, lapho abacwaningi bathola khona into ethokozisayo: ukwakheka okuyi-hexagonal ezungeze isigxobo esisenyakatho ngamadigri angu-78. Ukubaluleka kwalokhu kutholwa kugcizelelwa ngu-R. Morales-Juberías, u-KM Sayanagi, u-AA Simon, u-LN Fletcher kanye no-RG Cosentino ekushicileleni kwabo kwango-2015, esizocubungula kukho ngokuhamba kwesikhathi ukuze siqonde kabanzi.

Cishe ngo-1993, ukuba khona kwalokhu kwakheka kwaqinisekiswa ngokusemthethweni ngobufakazi obubonakalayo obuthathwe isibonakude se-Hubble. Nokho, kwaba njalo uphenyo oluhlonishwayo lwe-Cassini olusinikeze izithombe ezihlaba umxhwele kakhulu, kanye nedatha ebalulekile ngalo mkhuba. Kuyathakazelisa ukuthi kwakungesikhathi sokusondela kwe-probe ku-Saturn, lapho ekugcineni yayizohlangabezana nokushona kwayo, lapho yasinikeza khona kuqala izithombe ezishisayo ezibonisa ngokucacile ukuqina kwezenzakalo ezenzeka endaweni esenyakatho yeplanethi.

Ukutholwa kanye nokuzindla

ihexagon yesaturn

Lapho ukutholwa kwenziwa, ukuba khona kwalokhu kwakheka (okuthi, njengoba sazi, kuhlale kungashintshile iminyaka engaphezu kwengu-30 yoMhlaba) kwabonakala kukho. Inselele esibhekene nayo ukuthi iSaturn ikude kakhulu, futhi Kusazobonakala ukuthi ubani ozoqunga isibindi sokungena kuleso sihogo abuye nezindaba zokuthi yini elele ngaphakathi.

Nokho, kukhona njalo amamodeli ekhompyutha atholakalayo ukuze anikeze izimpendulo ezimeni ezinjengalezi. Iqembu lososayensi, kuhlanganise no-Ana C. Barbosa Aguiar, u-Peter L. Read, u-Robin D. Wordsworth, u-Tara Salter no-Y. Hiro Yamazaki, babonakala besonqenqemeni lokudalula imfihlakalo ngemuva kwe-hexagon eyinqaba. Ekushicileleni kwabo kwango-2010, bethule inkolelo-mbono ephakamisa ukuthi ukuma kwe-hexagonal kudalwe ezifundeni lapho imimoya yasemkhathini ye-Saturn ibonisa ushintsho oluphawulekayo lwesivinini ezindaweni ezahlukene.

Uhlu olubanzi lomumo wejiyomethri, okufaka phakathi onxantathu, ama-octagon ikakhulukazi amaheksagoni, abonwe ekwakhekeni ngaphakathi kwendawo yokugeleza okunesiyaluyalu lapho uketshezi olubili olunezivinini zokuzungezisa ezihlukene zihlanganyele. Kodwa-ke, lokhu kwakheka akuzange kwenzeke lapho i-viscosity yesivinini ingadluli umkhawulo othize, ichaza ukungabi khona kwayo esigxotsheni esiseningizimu yeSaturn nezinye iziqhwaga zegesi.

Izifundo ngamahexagons eSaturn

ihexagon yesaturn

Imodeli eyakhiwe ithimba le-Morales-Juberías yabonisa ukufana okukhulu kakhulu nezakhiwo ezibonwayo ze-hexagon, njengoba umcwaningi echaze ku-Space.com. Lokhu kwakuhlanganisa izici ezifana nesivinini sesigaba, amaphethini omoya, ukwakheka kwamafu kanye ne-gradient yezinga lokushisa eduze kwe-eksisi ye-meridional ehlotshaniswa nomumo we-hexagonal.

Ukuqinisekisa okwenziwa yileli qembu kunikeza ubufakazi obuningi obuvumelana nenkolelo-mbono yokuthi imodeli ye-baroclinic inesibopho sokuba khona kwesimo se-hexagonal kuSaturn. Besebenzisa izilinganiso zekhompuyutha zezinombolo, baye baphindaphinda ngempumelelo izici eziyinhloko zalesi simo, njengoba kuxoxiwe ngenhla.

Ukulingiswa kwamakhompiyutha okwenziwa ithimba le-Morales-Juberías kugqama ngokuba anembe kakhulu ekukhiqizeni kabusha izici ezibalulekile zento eyaziwayo njengamanje.

Amagagasi e-Baroclinic, njengamagagasi e-barotropic, ayisigaba samagagasi eplanethi noma amagagasi e-Rossby abonakala njengama-oscillations olwandle nasemkhathini. I-Naukas inikeza incazelo egcwele yomehluko phakathi kwalezi zinhlobo ezimbili: Amagagasi e-barotropic ahlala engashintshile endaweni eqondile, kuyilapho amagagasi e-baroclinic ebonisa ukuhluka kule ndlela. (futhi ube nesivinini sokuzungeza esihamba kancane uma kuqhathaniswa namagagasi e-barotropic). Kucatshangwa kabanzi ukuthi i-hexagon phenomenon ibangelwa amagagasi e-baroclinic.

Ngokwemodeli ethuthukiswe iqembu, umoya obalulekile womoya udala umzila ogobile oya ngasempumalanga eduze ne-north pole ye-Saturn, enqamula izindawo ezingaphezulu zomkhathi. Ngesikhathi esifanayo, ukwakheka kwe-hexagonal kuvela ngezansi, okubangelwa ukuphambana kwemimoya enqamulayo nokugeleza komoya okuyinhloko, njengoba isivinini somoya sincipha. Lesi sakhiwo esikhangayo, esisikhumbuza ubuciko bobuciko bukaVan Gogh, Ithatha ibanga elingamakhilomitha angu-30.000 futhi iyaqhubeka nokuheha abacwaningi ngobunjalo bayo obuyindida.

Ulwazi lwe-Cassini

Iheksagoni yeSaturn iyisethi emangalisayo yemimoya esheshayo, eyeqa isivinini esingamakhilomitha angama-300 ngehora. Ngokumangalisayo, uhlangothi ngalunye lwalesi sakhiwo sejometri lunwebeka cishe amakhilomitha ayi-13.800 ubude, ludlule ububanzi benkabazwe yoMhlaba obungamakhilomitha ayi-12.756. Ngaphakathi kobubanzi bayo obubanzi obungamakhilomitha angama-30.000, Ungathola amafu amaningi kanye nokwakheka okuzungezayo. Nakuba ingase ingabi nezinga elifanayo lokuvelela njenge-Jupiter's Spot, i-hexagon iphinde ibe ne-Great Anticyclone ehlukile, eyabhalwa okokuqala ngawo-1980.

Njengoba kushiwo ngenhla, uCassini usinikeze ingcebo yedatha emisha nezithombe ezinhle kakhulu. Lapho sikhuluma ngezibonakude zasemkhathini, sathola ukuthi kungenziwa ukubhekwa okuhlukahlukene kuye ngobude begagasi ezibuthwebule. Endabeni ye-Cassini, yayifakwe ama-spectrometers e-infrared (VIMS ne-CIRS) kanye ne-ultraviolet (UVIS), ahlola kahle ingqikithi yamaza angama-352. Lezi beziphakathi Ama-micrometer angu-0,35 kanye no-5,1 we-VIMS, ama-micrometer angu-7 kuya ku-1 millimeter we-CIRS kanye nama-nanometers angu-55,8 kuya ku-190 we-UVIS.

Ngithemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana nokuthi iyini i-hexagon ye-Saturn nezici zayo.


Shiya umbono wakho

Ikheli lakho le ngeke ishicilelwe. Ezidingekayo ibhalwe nge *

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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.