Nikeza izibalo ezibalulekile mayelana neVenus ohlwini olunezinhlamvu kufaka phakathi izinsuku zokuzungeza ilanga, izinga lokushisa elijwayelekile, inani lezinyanga ezizungeza iplanethi, kanye nento eyinhloko emkhathini wayo
Context:UVenus uyiplanethi yesibili ukusuka elangeni. Ngezinye izikhathi ibizwa ngokuthi iplanethi "yedadewethu" noma "amawele" oMhlaba njengoba icishe ibe nkulu futhi inezakhi ezifanayo. Njengeplanethi engaphakathi eMhlabeni, iVenus (njengeMercury) ibonakala esibhakabhakeni somhlaba singekho kude neLanga, kungaba njengenkanyezi yasekuseni noma inkanyezi yakusihlwa. Ngaphandle kweLanga neNyanga, iVenus iyinto yemvelo ekhanya kakhulu esibhakabhakeni somhlaba, ekwazi ukukhipha izithunzi ezibonakalayo eMhlabeni ezimweni ezimnyama futhi ibonakale ngeso lenyama emini.  UVenus uyisidalwa sesibili esikhulu kunazo zonke esisemhlabeni esikuSimiso Sonozungezilanga. Inamandla adonsela phansi aphansi kancane kunasemhlabeni futhi ine-magnetosphere ebuthakathaka. Umkhathi weVenus ngokuyinhloko wakhiwa isikhutha, futhi, ebusweni bale planethi, uwumkhathi ominyene kakhulu futhi oshisa kakhulu kulezi zinkanyezi ezine ezinjengomhlaba. Ngengcindezi yasemkhathini ebusweni beplanethi ephindwe izikhathi ezingaba ngu-92 kunengcindezi yasemanzini eMhlabeni kanye nokushisa okuphakathi kuka-737 K (464 °C; 867 °F), igesi ye-carbon dioxide ebusweni beVenus inguketshezi oluphakeme kakhulu. IVenus imbozwe ungqimba olungabonakali lwamafu e-sulfuric acid akhanyisa kakhulu, okwenza ibe iplanethi enama-albedo aphakeme kakhulu eSimisweni Sokujikeleza Kwelanga. Kungenzeka ukuthi yayinawo amanzi olwandle esikhathini esidlule, kodwa ngemva kokuba esehwamukile izinga lokushisa lakhuphuka ngenxa yethonya elinamandla lokushisa. Sekuyisikhathi eside kucatshangelwa ukuthi kungenzeka yini ukuba kube nokuphila kuVenus kodwa ukucwaninga akukabi nobufakazi obugculisayo kuze kube manje.  NjengeMercury, iVenus ayinazo izinyanga. Izinsuku zelanga kuVenus, ezinobude bezinsuku zomhlaba ezingu - 117, ziyingxenye nje kuphela yonyaka walo welanga, zizungeza iLanga njalo ezinsukwini zomhlaba ezingu - 224,7. Lobu bude bosuku lwaseVenus buwumkhiqizo wokujikeleza kwalo ngokumelene nokunyakaza kwalo kokuzungeza, kunciphisa isigamu sesikhathi salo sokujikeleza okuphelele kwezinsuku ezingama-243 zomhlaba, okuyisikhathi eside kunazo zonke amaplanethi ohlelo lwelanga. UVenus no-Uranus yibo bodwa amaplanethi anokujikeleza okunjalo okubuyela emuva, okwenza iLanga lihambe esibhakabhakeni lisuka entshonalanga liye empumalanga. Umjikelezo weVenus ozungeza iLanga useduze kakhulu nomjikelezo woMhlaba, ubenza basondelane kakhulu kunanoma yimaphi amanye amaplanethi. Lokhu kwenzeka ngesikhathi sokuhlangana okuphansi nenkathi ye-synodic yeminyaka engu-1.6. Nokho, ngokuvamile iMercury iyona esondelene kakhulu nazo.
- Izinsuku zomhlaba ezingu - 224,7 zokuzungeza ilanga - Isilinganiso sokushisa esingu-737 K (464 °C; 867 °F) - Azikho izinyanga ezizungeza iVenus - I - carbon dioxide iyisici esiyinhloko emkhathini