Menene more: wani star ko duniya a daban-daban star tsarin

A cikin dare sama don haka da yawa taurãri. Kuma suka dukkan ze haka kananan! Kuma ƙasã - saboda haka yana da babban. To, yãya kuke zahiri, wanda shi ne mafi girma, wani star ko a duniya? Domin amsa wannan tambaya, dole ne mu gane abin da ya ƙunshi kowane daga cikin wadannan basamaniyai.

star

Masana ilmin don haka ya kira jiki, a cikinsa faruwa thermonuclear halayen. Wannan giant bukukuwa na gas exuding iya tsammani adadin haske da zafin rana. Suna kafa ta gravitational matsawa na gas, da ƙura da cewa cika da halittu. The star a zurfin da dama miliyan hydrogen Kelvin yanayin zafi a thermonuclear halayen da aka tuba zuwa helium.

A surface na sanyi taurari: kawai 'yan dubu ko dubban kelvins. Stars - babban abubuwa na sararin duniya, domin suna dauke da wata babbar adadin haske a yanayi. Ko kadan bayanai iya taimaka wa amsa mafi girma na: a star ko a duniya.

Duk da taurari a tsarukan kewayewa a kusa da star. A tsarin mu, da taurari suna orbiting a cikin shugabanci, a cikin abin da Sun rotates a kan ta axis.

A star aka haife

Duk da haka, wannan ba duk data samuwa ga masana kimiyya a duniya game da taurãri. An dade an san cewa mafi girma: a star ko a duniya. Bugu da kari, gano yadda taurari sun bayyana. Kuma suna haife daga interstellar gas. Ƙarƙashin rinjayar da kansa nauyi girgijen al'amari ne matsa sannu a hankali. A wannan tsari, gravitational makamashi jũya a cikin zãfi. Bayan da yawan zafin jiki a cikin cibiyar ya kai miliyoyin kelvins, da matsawa tsaya a nan maimakon fara nucleosynthesis. Wannan shi ne mafi tsawo mataki na rayuwar wani star, yana muddin dai gudanar fitar da man fetur a cikin zuciyar. Lokacin da hydrogen ne tuba a cibiyar a helium, konewa ci gaba a gefen wani helium tsakiya.

star tsarin a cikin tsawon canji. A mataki na luminosity ƙaruwa, da m yadudduka mika bayan al'ada frame, yayin da ciki matsa ma fiye. A kwarjinin da star saukad. Bayan da na halitta karkatar surface zafin jiki na star aka ce suna da wani ja giant. A wannan lokaci, shi ya kasance mai gwada gajeren lokaci.

Wani misali na star samuwar a zamaninmu za a iya daukan wani gas jari a kusa da ƙungiyar taurari Orion. Wannan hadadden kara kusan dukan yankin na ƙungiyar taurari, ciki har da wani kwayoyin nauyi da kuma tsaka tsaki gas, kura, da kuma da dama nebulae. Stars aka kafa a can riga saboda mutane da yawa, miliyoyin shekaru da ba lokaci.

duniya

An sani cewa a lokaci guda tare da wani star daga wannan girgijen ƙura ci gaba da duniyar tamu, don haka dade ba wani asirin da cewa mafi: wani star ko duniyar tamu. A general, da taurari suna kira cikin wani sarari suKe jiki orbiting wani star. Wadannan abubuwa suna da wani isasshen taro don saya a zagaye siffar, amma har yanzu bai isa ba size to sun fara a thermonuclear halayen. Wadannan jikinsu aka tsarkake daga orbital sarari planetesimals.

A baya can, masana kimiyya ba su da tabbas na kasancewar taurari a kusa da sauran taurari, amma a yau gano wani babban yawan wadannan gawawwaki, kira exoplanets. Gane kasancewarsu, masu bincike ne kawai zai iya amfani da mafi m sarari kawo nesa kusa.

A mere cewa za mu iya ganin taurari da kuma taurari da cewa ya kamãta da su da tsarin - babu, ya ce fiye da: a star ko a duniya. A daya hannun, wasu daga cikin taurari da hasken rana tsarin, za mu iya ma ganin, a karkashin wani yanayi, duk da haka, wannan ba a ce su ne mafi mu star. Wannan kawai ya faru ga dalilin cewa wadannan taurari ne da yawa kusa da Earth fiye da mu star.

Ko da most wani sarari suKe jiki orbiting wani star yawa karami (a sau ko daruruwan sau) fiye da tsakiyar abu daga cikin tsarin. Bayan duk, idan ta kasance in ba haka ba, da taurari za su kewayewa da wani star, amma da haka ba. Amma wannan shi ne saba wa duk dokoki na duniya.

ƙarshe

Bisa ga bayanin da cewa masana kimiyya sun samu game da na'urar ba ne kawai namu, amma kuma a wasu star tsarin, amsar tambayar ko ya fi girma, star ko duniyar tamu ne bayyananne. Karami gawawwakin akwai doguwar a kusa da more. A taurari akwai doguwar a kusa da star, sa'an nan da star shi ne mafi m zuwa ga size da kuma nauyi.

Bugu da kari, da tambayar ko ya fi girma, star ko duniya, ko da tauraron dan adam, amsar zai zama guda. Fãce bayyana cewa tauraron dan adam na farko revolves a kusa da duniya, kuma kawai sai biyu daga cikin wadannan jikuna akwai doguwar kusa ta star.