North Star, futhi kanjani ukuthola i-Little Dipper kwi-Big Dipper?

Uma ubheka emuva eminyakeni, phakathi asterisk eziningi isikhundla kunalokho ezibalulekile kuhlala umlaza i-Ursa Minor. Zonke ubufakazi bubonisa ukuthi navigation lasendulo yayisekelwe isikhundla izinkanyezi kuwo. Nakuba abantu baseFenike ngezinye izikhathi ukusebenzisa Orienteering Big Dipper, naphezu ukugqama yaso ephezulu, kungase ukungalungi okukhulu ekutholweni indlela.

Indlela yokuthola i-Ursa Minor okuningi?

Ngokusobala, iningi lenu kalula ukuthola Big Dipper. Akuve ekhululekile futhi egqamile. Ukwazi ukuthi nemilaza ezimbili akhona, akungabazeki, kuyoba sobala ukuthi ukuthola i-Ursa Minor ngesikhathi Big Dipper. Ukuze wenze lokhu, kudingeka ukuba uxhume ngengqondo ezimbili zokugcina ngangezinkanyezi Big Dipper kusukela Meraka (β Big Dipper) ukuze Dubhe (α-Ursa Major)), ngokuqhubeka kulo mugqa kuze kufinyelele ibanga izikhathi 5 mkhulu kunezinhliziyo ibanga elibahlukanisile. Ngale ndlela, uzothola i-alpha (Polaris) Umlaza i-Ursa Minor.

Ngaphambi uzibuza ukuthi ukuthola umlaza i-Ursa Minor, ukwazi nje indawo Polaris, kudingeka uqonde ukuthi hlobo luni sibalo engenza ukukhanya nokuthi lwenkanyezi imayelana Big Dipper. Ukuze ukuqonde ngokwengeziwe: njengamagama abo, ayefana ngokwanele bese eyama ukuma ladle. Njengoba indawo, i-Little Dipper cishe sibheke phansi isikhundla mayelana Big Dipper.

Ulwazi - force

Hlola ibalazwe lezinkanyezi ngaphambi kokuqala search, kuyoba lula usesho lwakho lwe- lwenkanyezi. Ngemva kwalokho, qiniseka okuso lula ukuthola wayefisa lezinkanyezi. Futhi uma othile ekucela ukuthi ukuthola Dipper Little kwi-Big Dipper, une ulwazi oluphelele lwamaqiniso endaba uzokwazi ukuchaza ngokucacile kubukeke kanjani.

Nokho, manje sesiyazi ukuthi indlela yokuthola umlaza i-Ursa Minor. Ake sixoxe iNkanyezi yaseNyakatho ngawo ukwenza isikhathi eside futhi kanzima ngendlela abahambi nabahloli bamazwe yesikhathi esidlule. Nakuba lena akuyona inkanyezi bhá esibhakabhakeni ebusuku, kodwa itholakala esiseduzane engxenyeni esenyakatho nezwe, iphutha ingeqi 1 °. Ngemva kweminyaka engu-145 kuphela, iphutha isikhundla, mkhulu kwelilodwa degree.

Kwaze kwaba yilapho sebeshiye 3200, inkanyezi okungukuthi eduze engxenyeni esenyakatho nezwe, ngeke Alderamin (Alpha Cephei).

"Cool" nebhere ngomsila ukutsheka yomhlaba

North Star akashintshi isikhundla salo, naphezu kwegazi nsuku zonke Zomhlaba emhlabeni axis awo kanye ezinyakazayo yonyaka emzileni wawo uzungeze ilanga. Ukugqama eqondisa ukukhanya umfutho akuyona njalo futhi ushintsho PERIODICITY 4 izinsuku, ngaphakathi 2.02 ± 2%. Phambilini, amplitude we iLuminance lalilide namuhla ke uhlaliseke. Ukukhanya isiyonke iNkanyezi yaseNyakatho sikhulela njalo futhi siye sanda ngengxenye cishe 15% kule minyaka eyikhulu edlule.

okusizwa ukushaya bemvelo ehlangene izakhiwo ukukhanya, lena indlela beziphatha Cepheids. Eqondisayo Star ingenye Cepheids bhá esibhakabhakeni ebusuku.
Dipper Little esibhakabhakeni oluthatha indawo mayelana 255,9 degrees sikwele. omakhelwane sayo esiseduze kukhona Dragon, Cepheus. Ngo-Asterisk, njengoba sekuphawuliwe kakade, uhlala, iNorth Pole Wezwe - iphuzu sphere yasezulwini, lapho zonke izinto singaxoxi ke. Lapho kukhulunywa ngaye okokuqala e zomlando senziwa ngezinkanyezi ngesiGreki uPtolemy ekhulwini II.

Ursa Minor nezinkanyezi zalo

Isakhiwo Small Dipper umlaza siqukethe izinto elikhanyayo eziyisikhombisa. Kuzo zonke izinkanyezi Dipper Little kuyabonakala ezintathu kuphela kwezine evela kunazo yesiteleka. It Ferhad ne-Beta Ursae Minoris ezazakhe izindonga ka ladle, futhi amaHubo bugcizelelwa isibambo umlaza yaseNyakatho. Ngenhla umsila we-Big Dipper zitholakala esidlule izinkanyezi ezimbili.

Ibhakede Small kuyiwa kusukela amanye amaqoqo ezinkanyezi angu. Akukona ukushintsha endaweni ethile esesibhakabhakeni, efana Big Dipper futhi iningi nezinye Asterisk ukuthi kukhona zonyaka. Bona kungabonakala isizini ezithile, futhi bangabenzi esihambisekayo esibhakabhakeni phakathi nonyaka. Ursa Minor eshintsha indawo yayo, uzungeza Alpha yayo.

"UAlfa no-Omega" we umlaza i-Ursa Minor e Nenkabazwe

Alpha (North Star) Little Dipper sise ibanga kusuka Umhlaba 431 ngonyaka ukukhanya. Nge ubukhulu sobala elilingana 2.02. Njengoba kwaziwa, akusiyo eyodwa, kodwa izinkanyezi ezintathu bahlanganiswe uhlelo olulodwa. Bhá phakathi kwabo, cishe izikhathi 2000 ukukhanya kwelanga. Inkanyezi Ursa Minor yesibili inobungako 1.39 welanga. It kungabonakala nge isibonakude encane. Inkanyezi lwesithathu omkhulu ezingaphezu kuka Welanga yethu Alpha 1.25, futhi ngokwanele eduze kuqala. Ngosizo isibonakude "Hubble" isibe kungenzeka silihlobanise inkanyezi eyodwa.

Beta Ursae Minoris - orange giant, Arabhu elisho "iThe Star of the North". Okwesibili inkanyezi bhá, kuba beta, e umlaza we ebhakedeni Small nge ezidlula ka 2.8 futhi isuswe kusukela Earth at 126 light-years.

Ferhad - gamma-Ursa Minor, nge ubukhulu 3.6, ibanga sekuyiminyaka ukukhanya 480 kude. Le mpahla kubhekwa, umdondoshiya wavutha lokushisa 8600 K futhi libhekisela variable inkanyezi hlobo.

Delta Small Dipper, noma Yildun - oyisichwe ezimhlophe, esemgwaqweni at ibanga iminyaka ukukhanya 183.

Zeta - enye into encane, ezimhlophe futhi akhiwe kude zeminyaka 380 ukukhanya ukusuka eMhlabeni. Amandla kukhanya ayo izikhathi ezingu-200 kunakunoma ilanga. Uhlala indlela kumiswa izinkanyezi giant.

North Star ngeke behluleka

Mhlawumbe uyayikhumbula yonke lokhu akusebenzi, kodwa ulwazi lwakho baba ethé xaxa. Futhi uma you ngokuzuma ulahleke ehlathini futhi akukho iselula, zama ukukhumbula ukuthi ungathola kanjani i-Ursa Minor ngesikhathi Big Dipper. Awunakukugwema ukuthola Polaris futhi eMpumalanga lapho isiqondiso esenyakatho.

I isibhakabhaka sigcwele izimfihlo kanye izimfihlakalo engaziwa

Ngisho ngaphandle isibonakude, nje udonsela iso ukuze izinkanyiso ebusuku, uzobona indlela ahlukahlukene umkhathi wethu omkhulu. Constellation Ursa Minor - ingxenye encane nje kuphela ebonakalayo ke. Imingcele kanye nobukhulu umkhathi obonakalayo kithi namuhla nakanjani. Lena usayizi giant ngempela, ubude bayo - light-years engaba yizigidi eziyizinkulungwane ezingu-14.

Kodwa uma yonke empeleni? Ukucabanga ekujabulisayo izingqondo ososayensi okukhulu. Bona hypothesize, ucwaningo, mpikiswano futhi uzame ukuqonda ukuthi kunjalo? Abanye ochwepheshe waveza umbono wokuthi yonke akupheli, abanye - ukuthi kukhona wezinhlobo ezihlukahlukene zendawo yonke.

Futhi ukuze kube kuhle ukuthi omunye wawo une le planethi, izwe ikhophi wena. Noma kungenzeka, isayensi njalo odlulela kwesihenqo engaziwa futhi zifihleke yethu, njalo nihlola lokho kubonakala kumnandi namuhla abe ngokoqobo kusasa.