White nyenyezi yaing'ono, wakuda nyenyezi yaing'ono

Mu zakuthambo, pali zambiri sanaidziŵe, zodabwitsa, ndi zochitika zina chabe chodabwitsa, mmodzi amene ndi nyenyezi yaing'ono woyera. Mwa oyambirira kuphunzira awa zinthu zakuthambo chinkhoswe wasayansi Wilhelm Bessel. nawapeza ndithu mwangozi. Chinthu kafukufuku analenga nyenyezi yowala - Sirius. Chidwi akamachita maphunziro anapangitsa zachilendo njira yodutsamo wa dziko, ndicho chakuti iye anali undulating. Bessel anayamba kuyang'ana zifukwa ayenera zimene zingachititse kuti chachirendo chotero, mu maganizo ake, zachilengedwe.

Zonse kuwunika Sirius chinachititsa asayansi kuganiza kuti pafupi atangochimwa dziko lina, wosadziwika, nyenyezi kuti ali wosawoneka, koma chikoka yokoka ali ndi mphamvu. Izi zikugwirizana ndi chizindikiritso cha kusinthasintha magaziniyo mu kayendedwe ka Sirius. anapeza wina zinapangidwa ndi zakuthambo ndi. Iye anandiuza kuti ngati nyenyezi yaing'ono yoyera weniweni, ndiye nthawi ya mankhwala ndi Sirius, ndi dziko osadziwika mozungulira malo awo wamba yokoka pafupifupi wofanana ndi zaka 50. Planet Sirius akadali amakopeka asayansi ku dziko lonse ndi chinsinsi ake awiri ndipo akhala anafuna-pambuyo chinthu kafukufuku.

Ngati inu basi pofotokoza nyenyezi yaing'ono woyera, ndi chinthu cha mtundu lachinsinsi chimene adzatsekeredwa zobisika mu ngodya akumidzi m'chilengedwe chonse ndipo ndi otsalira a nyenyezi. Mu masiku akale, pamene zipangizo kuwala alibe nazo zoterozo maluso apamwamba kusamvana, izo ankakhulupirira kuti yoyera nyenyezi yaing'ono nyenyezi - zosayembekezereka osowa, koma asayansi amati zosiyana lero. Malinga zakuthambo American, chiwerengero cha mabungwe awa akuposa biliyoni 10. Zimenezo ndi 5% ya nyenyezi amene amati ali mu mlalang'amba wathu.

Asayansi akukhulupirira kuti nyenyezi yaing'ono nyenyezi - izi ndi anansi athu apamtima. White nyenyezi yaing'ono ali chikhalidwe amene makulidwe ndi angapo mazana mamita, izo wapangidwa ndi mankhwala ambiri kwa munthu. Mwachitsanzo: calcium, chitsulo, wa hydrogen, titaniyamu oxide helium, ndi mpweya. awiri ake nthaŵi wofanana 40 000 Km. Awiri mitundu ya atumiki woyera: otentha ndi ozizira, ndi chikhalidwe anapeka kwathunthu cha helium. Monga mbali ya woyamba asayansi okwanira wa hydrogen anapeza kuti 0,05%.

Kumiza dziko zinthu monga analimbikitsa ndi cannonball ndi, amene amasintha kutentha pamene yochokera mphamvu. The makulidwe a awa zakuthambo ndi yofanana. Akatswiri a sayansi ya masamu mtengo ndi wamkulu kuposa kulemera, ang'onoang'ono utali wozungulira awo.

The nyenyezi yaing'ono woyera ndi mtundu umodzi wokha wa mphamvu - kutentha. kuzirala yake poyerekeza ndi kuzirala kwa ndodo zitsulo, amene anatengedwa kuchokera kwa fryer lapansi. Choyamba, ndondomeko amapita msanga, koma mwamsanga pamene kutentha mkati anagwa, kuzirala amakhala wodekha.

Asayansi amati nyengo ya zaka zingapo miliyoni zana white nyenyezi yaing'ono luminosity kugwa ndi% 1 yekha wa luminosity okwana dzuwa. Kupyolera zaka mabilioni a mwina kupanga nyenyezi yaing'ono wakuda. Onse matupi akhala pang'ono kuphunzira patali chotero, koma ndi yofunika kwambiri ndipo nthawi zonse amakhala m'munda wa view asayansi.

Chitsanzo chidwi kulemera munthu mawerengedwe kutenga nkhani ya yokoka padziko wa nyenyezi yaing'ono woyera. Ndiye tinene kuti munthu ali ndi kulemera kwa makilogalamu 75 pa Dziko Lapansi, pamene dzuwa lidzachita kulemera matani 2, dziko nyenyezi yaing'ono zidzachuluka kuti matani 120-140.

A chachikulu nyenyezi chilengedwe lokwana mphamvu pa zaka mamiliyoni ambiri, ndipo atumiki kupulumutsa ndi kutambasula zaka nyukiliya, alipo pa zaka mabilioni. Zinsinsi kukhala apamwamba kwambiri kuposa njira N'kuthekanso njira zawo, koma akukhulupirira kuti posachedwapa chotchinga cha chinsinsi adzatsegula. Makamaka, zaposachedwapa ntchito yogwira ikuchitika ndi zakuthambo ku University. Washington.