Kushanduka nyeredzi - dzvuku hofori

Red Zirume uye supergiant - ndiro zita nzvimbo zvinhu pamwe nevazukuru anoshongwa uye yakakwirira luminosity. Vanopinda mukupera makirasi spectral K uye M. radii yavo kupfuura jeka kane mazana. The kunonyanyisa nemwaranzi kwenyeredzi chinoita tsvuku uye michini munharaunda chakarondedzera. On Hertzsprung- - Russell dzvuku hofori yaiva pamusoro huru mutsetse kutevedzana, avo Mhedziso nokukura dzinosiyana zvishoma pamusoro razero kana zvakaipa ukoshi.

Nzvimbo nyeredzi dzakadai kwazvo zuva nzvimbo kanenge 1500 nguva, uye apo waro dhayamita anenge ka40 zvakawanda. Sezvo musiyano neMhedziso kukosha kuna chinovheneka yedu anenge mashanu, zvinoitika kuti dzvuku hofori inongorira kazana chiedza. Asi iye kutonhora zvikuru. Solar tembiricha kaviri chokupika dzvuku hofori, uye saka paminiti chairema pose nzvimbo chiedza maitiro edu inongorira chiedza pane mamwe gumi nguva.

Rinooneka kwenyeredzi ruvara kunobva panyika tembiricha. Our Sun ari neshungu kusvikira chena uye ane duku saizi, saka chinonzi tsvuku zvipfupi. Nyeredzi unotonhorera zviri orenji uye tsvuku chiedza. nyeredzi imwe neimwe iri nedanho raro shanduka anogona kusvika wokupedzisira spectral zvidzidzo uye kuva dzvuku Rafa mumatanho maviri kukura. Izvi zvinoitika panguva nucleation danho kuti nyeredzi kana panguva yokupedzisira Danho yemhindumupindu. Panguva ino, dzvuku hofori anotanga emit simba nokuda kwavo rinokweva simba kusunungurwa kana kusvinwa.

Sezvo nyeredzi iri compressed, ayo tembiricha inowedzerawo. Panguva iyoyowo, nokuda zvinoderedza ukuru pemvura, dzimwe nguva rikawira luminosity. Iye anofa. Kana ichi chiri "muduku" tsvuku hofori, zvichaita anopedzisira ura hwake kutanga zvakaitwa yenyukireya kwetunhu nehelium kubva rehydrogen. Pashure paizvozvo, vechiduku nyeredzi achasiya huru kutevedzana. Nyeredzi yekare yakasiyana mugumo. In akazotevera nzendo yemhindumupindu rehydrogen ari mukati zviedza anowa zvachose. Pashure iyo nyeredzi anosiya chikuru kutevedzana. Maererano Hertzsprung - Russell, akatamira supergiants uye tsvuku hofori. Asi vasati mberi pachinhanho ichi, unopfuura ane zvenguva nhano - subgiant.

Subgiants akadana nyeredzi musimboti yakanga yaserera rehydrogen Fusion wanda, asi kupisa nehelium harisati atanga. Izvi zvinoitika nokuti tsanga hakuna kukwana kudziyirwa kukwira. Muenzaniso uyu zvinogona subgiant Arthur, riri renyeredzi Boötis. Ndiye ane orenji Kwose kwose pachena zvikuru -0,1. It riri chinhambwe kubva Sun anenge 36 - 38 makore chiedza. Kunoirinda kunogona kuva Northern Hemisphere muna May, kana iwe tarisa zvakananga kumaodzanyemba. Arthur dhayamita ka40 kwezuva.

Yellow pfupi zuva inyeredzi mudiki. zera Its vanofungidzirwa kuva mabhiriyoni 4,57 nemakore. On huru kutevedzana, zvichaita vachiri kuramba makore anenge mabhiriyoni 5. Asi masayendisiti vaigona vatevedzere nyika umo zuva - dzvuku hofori. miganhu yacho vanozokura 200-nedanga uye ukasvika Earth muchadenga, incinerating Mercury uye Venus. Zvechokwadi, upenyu panguva ino vasingachakwanisi. Panguva iyi, zuva richagara anenge mumwe makore mamiriyoni 100, pashure pacho ichava yemapuraneti nebula , uye inova chena zvipfupi.