Yellow Star: mienzaniso, musiyano iri ruvara nyeredzi

Chero nyeredzi - tsvuku, zvitema kana tsvuku - iri dzvuku inopisa bhora negasi. Modern kupatsanura kwenyeredzi kunobva parameters akawanda. Izvi zvinosanganisira pamusoro tembiricha, ukuru uye kupenya. Ruvara nyeredzi zvinoonekwa usiku hwakajeka, kunonyanya pazuva rokutanga parameter. The zvitema Hottest magetsi kana zvitema, kuti coldest - tsvuku. Yellow nyeredzi, mienzaniso zviri pasi apa, ndiwo waiva pakati nechinzvimbo pamusoro kutambudzwa tembiricha. Pakati izvi chiedza anopinda uye zuva.

misiyano

Body, nenharo kuti tembiricha siyana, emit chiedza pamwe dzisakarurama wavelength. parameter ichi akatsunga uye zvinoenderana ziso kwevanhu ruvara. The mapfupi ari wavelength, inopisa muviri, uye pedyo noruvara kuti chena, uye zvitema. Izvi ichokwadi kuti nyeredzi.

Robhoti dzvuku ndiyo coldest. Pamusoro tembiricha rinosvika madhigirii zvitatu chete zviuru. Yellow nyeredzi dzakadai sezuva redu, nechekare kupisa. photosphere kwayo neshungu kuti 6000º. White zviedza dzvuku inopisa kunyange mberi - kubva 10 kusvika 20 zviuru inegumi. Uye pakupedzisira, zvitema nyeredzi ndivo Hottest. Pamusoro tembiricha inosvika pakati 30 uye 100 zviuru madhigirii.

General unhu

Yellow nyeredzi, mazita mazhinji ayo yaizivikanwa uye vanhu kure nezvenyeredzi, masayendisiti akawana akawanda. Vakasiyana kukura, vakawanda, luminosity, uye mamwe maitiro. Common nokuti miviri yakadaro - kuti pemvura tembiricha.

Yellow chiedza vanogona kuwana mukufamba shanduka. Zvisinei, ruzhinji nyeredzi dzakadai iri huru kutevedzana Hertzsprung-Russell chati. Izvi zvinonzi tsvuku dwarfs, izvo zvinosanganisira zuva.

Nyeredzi huru wegadziriro

Dwarfs Zvinovheneka dzakadaro inonzi nokuda duku kukura. Sun dhayamita Avharenji 1,39 x 10 ⁹ m, kuti vazhinji - 1.99 x 10 ³⁰ makirogiramu. Both parameters vari yekudyidzana kupfuura avo yo Pasi asi muchadenga, havasi chinhu kunze zvavo. Pane dzimwe nyeredzi yero, sezvinoenzanisirwa pazasi, ndizvo vanotozozviziva zuva kukura.

The pose tembiricha chiedza chedu rinosvika 6 tysyach Kelvin. Sun zvinoreva spectral kirasi G2V. Kutaura zvazviri, zvinoita inongorira chiedza anenge akachena chena, zvisinei, nokuda hunhu yepasi muchadenga wefodya nokuda pfupi-wave chikamu chakarondedzera. Zvinoguma yeyero tint.

Features shora zvipfupi

Small kwemavara Zvinovheneka vari ichazivikanwa noku anoyevedza hurefu. Avhareji ukoshi pamusoro parameter ichi - mabhiriyoni 10 makore. Zuva rava ikozvino iri anenge ari pakati upenyu kutenderera, ndiko, kuti ribude kubva huru kutevedzana uye akatendeukira mugomba dzvuku hofori, zvazvinosarira makore anenge mabhiriyoni 5.

Star, yero, uye chokuita norudzi "pfupi" rine kukura rakafanana zuva. Energy tsime miviri yakadaro - kwetunhu nehelium kubva rehydrogen. Rinotevera shanduka Danho vachifambira mushure tsanga kunotangira uye inoguma rehydrogen combustion nehelium.

Kunze Sun kusvika yeyero pfupi inotaura Alpha Centauri A, Alpha Corona Borealis, Bootes Mu, Vangararai Ceti nezvimwe Zvinovheneka.

Yellow subgiants

Stars kufanana Sun, pashure uchimhanya hydrogen huni, anotanga kuchinja. Kamwe mwoyo weatomu nehelium zviedza rinopenya kuwedzerwa kuva dzvuku hofori. Zvisinei, danho iri hakuitiki pakarepo. Chokutanga, tanga kupisa dzokunze akaturikidzana. Nyeredzi rabva chikuru-urongwa, asi vasati kuwedzerwa - chiri pamusoro subgiant Danho. Mukanyiwa vezviedza dzakadaro kazhinji zvichisiyana 1 kusvika 5 kwezuva vakawanda.

Yellow subgiant Danho anogona kutora nzvimbo uye zvaitoshamisa kukura nyeredzi. Zvisinei, kwavari, Danho iri shoma raidudzwa. The yakakurumbira subgiant nhasi - nayo Procyon (Alpha Canis Minor).

husiri nyore kuwana chaicho

Yellow nyeredzi, vane mazita vakapiwa kumusoro, zvikuru mune zvose marudzi. Zvikasadaro zvinhu hypergiants. Ava Hofori chaidzo, iro vanonzi chakakura zvikuru, inopenya uye yakakura, uye panguva imwecheteyo kuva pfupi upenyu anotarisirwa. Vakawanda anozivikanwa hypergiants openya yebhuruu variables, asi pakati pavo pane chena, nyeredzi yero, uye kunyange tsvuku.

Pakati muchadenga mitumbi izvi zvisingawanzoitiki dzinosanganisira Somuenzaniso, Rho Cassiopeia. Ichi yeyero hypergiants, luminosity iri 550 zviuru nguva outstripping zuva. Kubva redu riri yabviswa pana 12,000 chiedza makore. Usiku hwakajeka unogona kuona akashama ziso (pachena wakachena - 4,52m).

supergiants

Hypergiants - nyaya chinokosha supergiants. The yokupedzisira rinewo nyeredzi tsvuku. Ivo, maererano vanoongorora nyeredzi, ndiko Transitional Danho yemhindumupindu chiedza kubva yebhuruu kusvika dzvuku supergiant. Zvisinei, panguva padariro yeyero supergiant nyeredzi anogona kurarama kwenguva zvakakwana. Kazhinji, Panguva iyi chiedza shanduka hamufi. In zvose kudzidza muchadenga zvakanga zvakanyorwa supernovae maviri chete wakadenha tsvuku supergiants.

Zvinovheneka izvi zvinosanganisira Canopus (Alpha Carinae) Rastaban (Beta Dragon), Beta Aquarius nedzimwe zvinhu.

Sezvinogona kuoneka, nyeredzi imwe neimwe, yellow sezuva, ane chaizvo maitiro. Zvisinei, vose vane zvimwe - ruvara kuti nemhaka kudziyisa pamusoro photosphere dzimwe tembiricha. Kunze izvi, kuti zvinovheneka dzakadaro inosanganisira Epsilon Shield uye Beta Corvi (inopenya nehofori), kuti Southern Triangle Delta uye Beta camelopardalis rothschildiikuva (supergiants), Capella uye Vindemiatrix (hofori) uye yepasi pose nezvimwe miviri. Zvinofanira kucherechedzwa kuti ruvara anotaurwa kupatsanura pakati chinhu hapasi uwirirane zvinooneka. Izvi zvinoitika nokuti Hue chiedza kwechokwadi yakavhiringidzwa nokuda gasi uye guruva, uye pashure achipfuura mumhepo. Kuti tizive noruvara astrophysicists uchishandisa spectrograph muchina: rinopa zvikuru zvakarurama mashoko kupfuura munhu ziso. Nemhaka payo, masayendisiti anogona kusiyanisa zvitema, yellow uye tsvuku nyeredzi, kure nesu madaro marefu.