Me yasa Pluto ba duniya bane?

Pluto, duniyar da aka manta, ba ta zama duniya ba. A cikin tsarin mu na hasken rana akwai taurari tara har sai an sake bayyana ko duniya ta kasance ta duniya ko a'a, kuma Pluto ya fito daga haɗin gwiwar taurari. A 2006 an gane shi a matsayin dwarf duniya bayan shekaru 75 na aiki a cikin duniyar duniyar. Duk da haka, mahimmancin wannan duniyar yana da girma domin jikin sararin samaniya da ke ratsa ta cikin sararin samaniya ana kiransa Pluto. Mutane da yawa ba su sani ba me yasa pluto ba duniya bane.

Saboda haka, za mu sadaukar da wannan labarin don gaya muku menene manyan dalilan da suka sa Pluto ba duniyar duniyar ba ce da kuma irin halayenta.

Babban fasali

Duniyar dwarf tana kewaya rana duk bayan shekaru 247,7 kuma tana da matsakaicin nisa na kilomita biliyan 5.900. Girman Pluto yayi daidai da sau 0,0021 na duniya. ko kuma kashi biyar na adadin watan. Wannan ya sa ya zama ƙanƙanta sosai don a ɗauke shi duniyar.

Eh, ta kasance duniya ta Ƙungiyar Astronomical ta Duniya tsawon shekaru 75. A cikin 1930, an karɓi sunansa daga gunkin Roman na underworld.

Godiya ga gano wannan duniyar, an gano manyan abubuwan bincike irin su Kuiper Belt daga baya. Ana la'akari da shi mafi girma dwarf duniya, bayan Eris. Ana samuwa ne musamman daga wasu nau'ikan kankara. Mun gano cewa an yi ƙanƙara daga methane daskararre, wani ruwa ne, wani kuma dutse ne.

Bayani game da Pluto yana da iyaka, saboda fasahar tun a shekarun 1930 ba ta yi nisa ba don samar da gagarumin binciken abubuwan da ke nesa da duniya. Har zuwa lokacin, ita ce kawai duniyar da jiragen sama ba su ziyarta ba.

A cikin watan Yulin 2015, godiya ga sabon aikin sararin samaniya wanda ya bar duniya a cikin 2006, ya sami damar isa duniyar dwarf kuma ya sami bayanai da yawa. Wannan bayanin yana ɗaukar shekara guda kafin ya isa duniyarmu.

Bayani akan duniyoyin dwarf

Saboda haɓaka da haɓakar fasaha, ana samun sakamako da yawa da bayanai game da Pluto. Tafiyarsa na musamman ne, an ba shi alakarsa ta jujjuyawa da tauraron dan adam, da kusurwoyinsa na jujjuyawa, da kuma canjin adadin hasken da ke bugunsa. Duk waɗannan sauye-sauye sun sa wannan duniyar dwarf ta zama babban abin jan hankali ga al'ummar kimiyya.

Shi ne abin da yake nisa daga rana fiye da sauran duniya wanda ya zama tsarin hasken rana. Duk da haka, saboda ƙayyadaddun yanayin sararin samaniyar ta, ya kai shekaru 20 kusa da kewayen Neptune. Pluto ya ketare kewayen Neptune a cikin Janairu 1979 kuma bai kusanci Rana ba sai Maris 1999. Wannan lamari ba zai sake faruwa ba har sai Satumba 2226. Yayin da wata duniyar ke shiga cikin kewayar wani, babu yiwuwar karo. Wannan saboda kewayawa yana da digiri 17,2 dangane da jirgin saman husufi. Godiya ga wannan, hanyoyin kewayawa suna nufin cewa taurari ba su taɓa haduwa ba.

Pluto yana da watanni biyar. Ko da yake girmansa yana kama da na tauraron mu, yana da ƙarin watanni 4 fiye da mu. Mafi girman wata, da ake kira Charon, ya kai rabin girman Pluto.

Yanayi da abun da ke ciki

Yanayin Pluto shine kashi 98 cikin XNUMX na nitrogen, methane, da wasu abubuwan ganowa na carbon monoxide. Wadannan iskar gas suna yin wani matsa lamba a saman doron kasa, ko da yake ya kai kusan sau 100.000 kasa da karfin da ke kan duniya a matakin teku.

An kuma samu methane mai tsauri, don haka an kiyasta zafin duniyar dwarf bai kai 70 Kelvin ba. Saboda nau'in kewayawa na musamman, zafin jiki yana da babban kewayon bambancin tare da shi. Pluto na iya zama kusa da 30 AU zuwa rana kuma har zuwa 50 AU daga rana. Yayin da yake nisa daga rana, wani siraren yanayi yana tasowa a duniyar, wanda ya daskare ya fado saman.

Ba kamar sauran taurari kamar Saturn da Jupiter ba, Pluto yana da ƙarfi sosai idan aka kwatanta da sauran taurari. Bayan bincike, an kammala cewa yawancin dutsen da ke duniyar dwarf yana hade da ƙanƙara saboda ƙarancin zafin jiki. Kamar yadda muka gani a baya, kankara na asali daban-daban. Wasu ana hada su da methane, wasu da ruwa da sauransu.

Ana iya ƙididdige wannan don la'akari da nau'ikan haɗaɗɗun sinadarai waɗanda ke faruwa a ƙananan yanayin zafi da matsi yayin ƙirƙirar duniya. Wasu masana kimiyya hasashe cewa Pluto shine ainihin watan Neptune. Hakan ya faru ne saboda yana yiwuwa an jefa duniyar dwarf a cikin wani yanayi na daban yayin da aka samu tsarin hasken rana. Saboda haka, Charon yana samuwa ta hanyar tara abubuwa masu sauƙi daga karon.

Jujjuyawar Pluto

Pluto yana ɗaukar kwanaki 6.384 don kammala jujjuya ɗaya saboda yana aiki tare da kewayen wata. Shi ya sa Pluto da Charon suka kasance a gefe guda. Axis din duniya na jujjuyawa shine digiri 23, yayin da wannan asteroid axis na jujjuyawa shine digiri 122. Sandunan suna kusan a cikin jiragensu na kewayawa.

Lokacin da aka fara ganinta, an ga haske daga sandarsa ta kudu. Yayin da ra'ayinmu game da Pluto ya canza, duniyar ta bayyana tana yin duhu. A yau muna iya ganin equator na asteroid daga Duniya.

Tsakanin 1985 zuwa 1990, duniyarmu ta yi daidai da kewayawar Charon. Don haka, ana iya ganin husufin rana na Pluto kowace rana. Godiya ga wannan gaskiyar, yana yiwuwa a tattara babban adadin bayanai game da albedo na wannan duniyar dwarf. Mun tuna cewa albedo shine al'amarin da ke bayyana ma'anar hasken hasken rana na duniya.

Me yasa Pluto ba duniya bane?

A shekara ta 2006, musamman a ranar 24 ga Agusta, Ƙungiyar Ƙwararrun Astronomical ta Duniya (IAU) ta gudanar da taro mai mahimmanci: Ƙayyade ainihin abin da duniya take. Wannan saboda ma'anar da suka gabata sun kasa gano ainihin abin da duniya take, kuma Pluto ya kasance a tsakiyar muhawarar, kamar yadda masanin falaki Mike Brown ya gano wani abu Eris wanda ya fi Pluto girma a cikin Kuiper Belt kanta. Wannan ya taƙaita ilimin taurari a lokacin, tun da idan Pluto ya cancanci zama duniya, me yasa Iris bai yi ba? Idan haka ne, taurari nawa masu yuwuwa ne suka rage a cikin bel na Kuiper?

Muhawarar ta zurfafa har sai da Pluto ya rasa takensa na duniya yayin taron IAU na 2006. Ƙungiyar Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙirar Duniya ta bayyana a matsayin jiki mai siffar siffar siffar da ke kewaye da tauraro.. Har ila yau, taurari dole ne su kasance suna da fayyace fage.

Pluto bai cika buƙatun ƙarshe ba, don haka a hukumance an keɓe shi daga zama duniya a cikin tsarin hasken rana. Sai dai har yanzu muhawarar tana nan a bude, inda wasu ke cewa ya kamata Pluto ya koma cikin jerin sunayen da aka zaba. A cikin 2015, NASA's New Horizons manufa ta gano cewa duniyar "tsohuwar" ta fi girma fiye da tunanin masana taurari.

Kwamandan Ofishin Jakadancin Alan Stern ya kasance daya daga cikin masana ilmin taurari da suka yi sabani da ma’anar duniya a halin yanzu, yana mai cewa ya kamata Pluto ya ci gaba da kasancewa a cikin taurarin tsarin hasken rana.

Ina fatan cewa tare da wannan bayanin zaku iya sanin dalilan da yasa Pluto ba ta duniya ba ce.