Dwarf taurari: Pluto, Eris, Makemake, Haumea

Dwarf duniya a zahiri bai wanzu har 2006. To sun kasaftawa zuwa wani sabon aji na cosmic abubuwa. Manufar wannan canji shi ne gabatarwar da wani ke tsakiya tsakanin manyan taurari da kuma asteroids yawa su hana rikice a cikin sunayen sabon jikin da statuses gano bayan Neptune.

definition

Sa'an nan, a cikin riga m 2006, a yau da kullum da gamuwa da IAU (International astronomical Union). A kan ajanda da aka tambaya na tantancewa da matsayi na Pluto. A lokacin tattaunawa da aka yanke shawarar rage shi da "daraja" tara duniya. MAC ya ɓullo da ma'anar wasu sarari abubuwa:

• Planet - jiki orbiting Sun, m isa ya tsare hydrostatic ma'auni (cewa shi ne a yi zagaye siffar) da kuma share ta kewayewa da sauran abubuwa.
• Asteroid - jiki revolves a kusa da Sun, wanda yana da kananan taro, wanda ba ya yarda da shi a kai a hydrostatic balance.
• Dwarf duniya - a jiki orbiting da Sun cewa tana goyon bayan hydrostatic ma'auni, amma ba m, don share falaki.

Daga cikin karshen kuma dauki Pluto.

A sabon matsayi

Pluto kuma classified a matsayin trans-Neptunian abubuwa. Kamar wasu sauran Dwarf taurari, shi yana nufin da jikin na Kuiper Belt. A impetus ga wani nazari na matsayi na Pluto ya kai ga da yawa binciken abubuwa a cikin wannan nĩsan hasken rana tsarin. Daga cikin su ya Eris, Pluto ne m, a nauyi da 27%. By da dabaru na dukan waɗannan jikuna bukatar da za a classified a matsayin duniya. Wannan shi ne dalilin da ya sa shi aka yanke shawarar gyara da kuma saka tabbatar da dalilin da irin wannan sarari abubuwa. Kuma akwai Dwarf taurari.

goma

"Saukar da daraja na" ba kawai Pluto. Eris ga MAC taron a 2006, ya yi iƙirarin zama "da sunan" ta goma duniya. Yana shi ne mafifici a Pluto da nauyi, amma mafi ƙaranci daga gare shi a size. Eris aka gano a 2005 by American ilmin Taurari da hannu a cikin search for trans-Neptunian abubuwa. Asali an kira Xenu ko Xena, amma daga baya ya fara yin amfani da na yanzu sunan.

Eris, kamar sauran Dwarf taurari na hasken rana tsarin, shi yana da hydrostatic ma'auni, amma ya kasa share ta kewayewa da sauran cosmic jikinsu.

The uku a cikin jerin

A gaba most bayan Pluto da Eris, Makemake ne. Wannan shi ne wani classic abu na Kuiper Belt. An ban sha'awa labarin ne sunan wannan jiki. Kamar yadda a kullum, bayan da aka gano ya aka bayar da 2005 FY ₉ lambar. Na dogon lokaci, wata tawagar American Masana ilmin wanda ya gano Makemake, ya kira shi a tsakãninsu, "Ista" (samu aka yi a 'yan kwanaki bayan da biki).

A 2006, lokacin da akwai wani sabon shafi "Dwarf duniya na Solar System" a cikin rarrabuwa, an yanke shawarar kiran 2005 FY ₉ in ba haka ba. By al'ada, da na gargajiya Kuiper Belt abubuwa suna suna bayan abũbuwan bautãwa hade da halittar. Maka-Maka - mahaliccin mutãne, a cikin mythology na Rapa-Nui, ainihin mazauna Easter Island.

Haumea

Dwarf taurari na hasken rana tsarin hada da daya fiye da trans-Neptunian abubuwa. Yana Haumea. Its main alama - da sosai m juyawa. Haumea wannan siga ne gaba na dukan da aka sani abubuwa tare da diamita na fiye da daya da ɗari mita a tsarin mu. Daga cikin Dwarf taurari abu ne na huɗu most.

Ceres

Wani m jiki na zuwa wannan aji da aka located a cikin babban asteroid bel, wanda ya ta'allaka ne tsakanin falakinsu na Jupiter kuma Mars. Wannan Ceres. Yana da aka bude a farkon 1801. Ga wasu lokaci da aka dauke shi a cikakken fledged duniya. Kuma a cikin 1802, a sakamakon zuwa asteroids Ceres. cosmic jiki matsayi aka bita a 2006.

Dwarf duniya daga ta fi girma da makwabta suka sãɓã wa jũna, yafi rashin iyawa to share gewayar falaki daga sauran gawawwakin da tarkace. Yadda dace don amfani da wannan bidi'a, yana da wuya a ce a yanzu - lokaci zai gaya. Ya zuwa yanzu, fãce kaɗan sauƙaƙar da muhawara game da Pluto ta Halin Downgrade. Duk da haka, da darajar da tsohon tara duniya da kuma irin wannan jikin for kimiyya zauna high la'akari da yadda aka kira su.