{"id":64,"date":"2013-11-12T16:03:23","date_gmt":"2013-11-12T16:03:23","guid":{"rendered":"http:\/\/www.123fakta.com\/da\/?p=64"},"modified":"2026-03-19T10:39:06","modified_gmt":"2026-03-19T10:39:06","slug":"faktoja-mars-planeetasta","status":"publish","type":"post","link":"https:\/\/www.123fakta.com\/fi\/facts-about-the-planet-mars","title":{"rendered":"Tietoja Mars-planeetasta"},"content":{"rendered":"<ol>\n<li><strong>Aurinko:<\/strong>\u00a0Mars on nelj\u00e4s planeetta auringosta. Sen et\u00e4isyys auringosta on noin 228 miljoonaa kilometri\u00e4.<\/li>\n<li><strong>P\u00e4iv\u00e4:<\/strong>\u00a0Yksi p\u00e4iv\u00e4 Marsissa (aika, joka Marsilla kest\u00e4\u00e4 kiert\u00e4\u00e4 itsens\u00e4 ymp\u00e4ri kerran) kest\u00e4\u00e4 hieman yli 24 tuntia (24,6 tuntia) - melkein kuin yksi p\u00e4iv\u00e4 t\u00e4\u00e4ll\u00e4 Maassa.<\/li>\n<li><strong>Vuosi:<\/strong>\u00a01 vuosi (aika, jonka Mars kiert\u00e4\u00e4 kerran auringon ymp\u00e4ri) vastaa 687 p\u00e4iv\u00e4\u00e4 t\u00e4\u00e4ll\u00e4 maapallolla.<\/li>\n<li><strong>Painovoima:<\/strong>\u00a0Marsin painovoima on vain 37% Maan painovoimasta. T\u00e4m\u00e4 tarkoittaa, ett\u00e4 samalla voimalla voi hyp\u00e4t\u00e4 3 kertaa korkeammalle Marsissa kuin Maassa.<\/li>\n<li><strong>Pinta:<\/strong>\u00a0Mars on kivinen planeetta, jonka pinnalla esiintyy tulivuoria, meteoriittit\u00f6rm\u00e4yksi\u00e4, maankuoren liikkeit\u00e4, ilmakeh\u00e4n vaikutuksia ja p\u00f6lymyrskyj\u00e4 (hiekkamyrskyj\u00e4).<\/li>\n<li><strong>Ominaisuudet:<\/strong>\u00a0Marsissa ei ole renkaita eik\u00e4 globaalia magneettikentt\u00e4\u00e4. Marsin ilmakeh\u00e4 on ohut ja koostuu p\u00e4\u00e4asiassa hiilidioksidista, typest\u00e4 ja argonista. Marsilla on my\u00f6s 2 kuuta: Phobos ja Deimos.<\/li>\n<li><strong>Avaruusalus:<\/strong>\u00a0Yli 40 avaruusalusta on k\u00e4ynyt Marsissa - lent\u00e4nyt sen ohi, kiert\u00e4nyt sen kiertoradalla ja laskeutunut sen pinnalle. Ensimm\u00e4inen onnistunut Mars-lento oli Mariner 4 vuonna 1965.<\/li>\n<li><strong>Suurin tulivuori:<\/strong>\u00a0Marsissa on koko aurinkokunnan suurin tulivuori, Olympus Mons, joka on 25 kilometri\u00e4 korkea ja jonka halkaisija on 600 kilometri\u00e4. Maapallon suurin tulivuori, Mauna Loa, on hieman yli 4 km korkea (4 169 m) ja 3-5 km leve\u00e4.<\/li>\n<li><strong>Gorges:<\/strong>\u00a0Marsissa on useita kanjonij\u00e4rjestelmi\u00e4, joista merkitt\u00e4vin on p\u00e4iv\u00e4ntasaajan ymp\u00e4ri kulkeva Valles Marineris -j\u00e4rjestelm\u00e4. Vaikka se ei olekaan tosiasia, nykyajan asiantuntijat uskovat, ett\u00e4 n\u00e4m\u00e4 kanjonit ovat syntyneet veden vaikutuksesta.<\/li>\n<li><strong>Nimi:<\/strong>\u00a0Mars tunnetaan my\u00f6s nimell\u00e4 \"punainen planeetta\", koska planeetan maaper\u00e4ss\u00e4 olevat rautamineraalit hapettuvat eli ruostuvat, jolloin maaper\u00e4 ja p\u00f6lyinen ilmakeh\u00e4 n\u00e4ytt\u00e4v\u00e4t punertavilta. Nimi Mars on per\u00e4isin roomalaisesta mytologiasta, jossa Mars oli sodan jumala. Syy siihen, miksi roomalaiset p\u00e4\u00e4ttiv\u00e4t nimet\u00e4 Marsin sodanjumalansa mukaan, on planeetan punainen v\u00e4ri, joka muistuttaa verta.<\/li>\n<\/ol>\n<figure id=\"attachment_7972\" aria-describedby=\"caption-attachment-7972\" style=\"width: 790px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7972\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/mars-fakta-2.jpg\" alt=\"Fakta: Mars on tunnettu punaisesta v\u00e4rist\u00e4\u00e4n\" width=\"800\" height=\"899\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/mars-fakta-2.jpg 800w, https:\/\/www.123fakta.com\/wp-content\/uploads\/mars-fakta-2-267x300.jpg 267w, https:\/\/www.123fakta.com\/wp-content\/uploads\/mars-fakta-2-768x863.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/mars-fakta-2-11x12.jpg 11w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-7972\" class=\"wp-caption-text\">Attribuutio: Wikipedia.org<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Fakta: Marsin punainen v\u00e4ri johtuu siit\u00e4, ett\u00e4 planeetan maaper\u00e4ss\u00e4 ja p\u00f6lyss\u00e4 olevat rautahiukkaset ruostuvat hapettuessaan.<\/strong><\/em><\/p>\n<h2>Lis\u00e4\u00e4 faktoja Marsista<\/h2>\n<ul>\n<li><strong>Liv:<\/strong>\u00a0T\u00e4ss\u00e4 vaiheessa planeetan historiaa Marsissa ei voi olla el\u00e4m\u00e4\u00e4 (ainakaan sellaista el\u00e4m\u00e4\u00e4, jonka me tunnemme). Yksi t\u00e4rkeimmist\u00e4 tieteellisist\u00e4 tavoitteista on selvitt\u00e4\u00e4, onko Marsissa ollut ja voisiko siell\u00e4 olla el\u00e4m\u00e4\u00e4 menneisyydess\u00e4 ja tulevaisuudessa.<\/li>\n<li><strong>Vuodenajat:<\/strong>\u00a0Kallistuksensa vuoksi Marsissa on vuodenaikoja, jotka vaikuttavat sen pintaan - aivan kuten Maassa. Marsin vuodenajat ovat kuitenkin pidempi\u00e4 kuin Maan, koska Mars on 1,5 kertaa kauempana auringosta ja lis\u00e4ksi hieman elliptinen (t\u00e4m\u00e4 aiheuttaa sen et\u00e4isyyden vaihtelua auringosta, mik\u00e4 pident\u00e4\u00e4 vuodenaikoja).<\/li>\n<li><strong>Tolpat:<\/strong>\u00a0Marsin napojen ymp\u00e4rill\u00e4 on valkoisia laikkuja, mutta viel\u00e4 ei tiedet\u00e4, onko niiss\u00e4 vett\u00e4. Napojen koko vaihtelee vuodenaikojen mukaan.<\/li>\n<\/ul>\n<table border=\"1\">\n<tbody>\n<tr>\n<td class=\"sektion0\" colspan=\"2\">Marsin profiili<\/td>\n<\/tr>\n<tr>\n<td>Massa:<\/td>\n<td>6,4185\u00d710<sup>23<\/sup>\u00a0kg (0,107 x Maa)<\/td>\n<\/tr>\n<tr>\n<td>Eksentrisyys:<\/td>\n<td>0,093315<\/td>\n<\/tr>\n<tr>\n<td>Halkaisija p\u00e4iv\u00e4ntasaajalla:<\/td>\n<td>6,794 km<\/td>\n<\/tr>\n<tr>\n<td>Ymp\u00e4rysmitta p\u00e4iv\u00e4ntasaajalla:<\/td>\n<td>24,343 km<\/td>\n<\/tr>\n<tr>\n<td>Kiertonopeus:<\/td>\n<td>24,077 km\/s<\/td>\n<\/tr>\n<tr>\n<td>Aphelion:<\/td>\n<td>249 209 300 km<\/td>\n<\/tr>\n<tr>\n<td>Periheli:<\/td>\n<td>206,669,000 km<\/td>\n<\/tr>\n<tr>\n<td>Keskim\u00e4\u00e4r\u00e4inen et\u00e4isyys auringosta:<\/td>\n<td>227 940 000 km<\/td>\n<\/tr>\n<tr>\n<td>Pintal\u00e4mp\u00f6tila:<\/td>\n<td>-143 - 35 \u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>Aurinko: Mars on nelj\u00e4s planeetta auringosta. Sen et\u00e4isyys auringosta on noin 228 miljoonaa kilometri\u00e4 P\u00e4iv\u00e4: 1 p\u00e4iv\u00e4 Marsissa (aika, joka Marsilla kuluu kerran itsens\u00e4 ymp\u00e4ri py\u00f6rimiseen) kest\u00e4\u00e4 hieman yli 24 tuntia (24,6 tuntia) - melkein kuin p\u00e4iv\u00e4 t\u00e4\u00e4ll\u00e4 Maassa Vuosi: 1 vuosi (aika, joka Marsilla kuluu kerran itsens\u00e4 ymp\u00e4ri py\u00f6rimiseen) ... <a title=\"Tietoja Mars-planeetasta\" class=\"read-more\" href=\"https:\/\/www.123fakta.com\/fi\/facts-about-the-planet-mars\" aria-label=\"Lue lis\u00e4\u00e4 aiheesta Faktoja Mars-planeetasta\">Lue lis\u00e4\u00e4<\/a><\/p>","protected":false},"author":1,"featured_media":7971,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[69],"tags":[120],"class_list":["post-64","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-the-universe","tag-adsense"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mars - Facts about the planet&#039;s gravity, size, etc.<\/title>\n<meta name=\"description\" content=\"Fact: Mars has seasons that change the planet&#039;s surface - much like on Earth. 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