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| comment | | "parent_author":"",<br>"parent_permlink":"mystifact",<br>"author":"jschindler",<br>"permlink":"mystifact-or-fiction-challenge-response-2-is-pluto-really-the-smallest-planet-in-our-solar-system",<br>"title":"MystiFACT-or-FICTION challenge Response -#2 Is Pluto really the smallest planet in our solar system?",<br>"body":"Not everyone knows that since 2006 Pluto has actually been [reclassified (https:\/\/www.iau.org\/news\/pressreleases\/detail\/iau0603\/) as a dwarf planet or trans-Neptunian object,<br> reducing the total number of \"classical\" planets by 1,<br> from 9. This in turn leaves us with only 8 \"classical\" planets,<br> from largest to smallest: Jupiter,<br> Saturn,<br> Uranus,<br> Neptune,<br> Earth,<br> Venus,<br> Mars,<br> and Mercury. \n\nNot only is Mercury the smallest in size,<br> but is also the closest to our sun. \n\n**More Interestings fact about Mercury:**\n \"Mercury's rotation around its axis lasts 59 days,<br> and it takes 88 days to move around its orbit around the Sun. Interestingly,<br> 59 is exactly 2\/3 of 88. This is not by chance - it is an effect of the Sun's gravitational field on Mercury. It is a similar phenomenon that the Earth's Moon always has the same \"face\"; the Moon always turns the same side towards the Earth.\n\nThis has a most unusual effect on the length of a Mercurian \"day\" as measured from noon to noon (note that the word \"day\" is here used to mean \"one daytime period + one nighttime period\",<br> corresponding to \"24 hours\" on Earth). In fact,<br> such a day on Mercury is twice as long as a Mercurian \"year\" !\" [Source (https:\/\/www.eso.org\/public\/outreach\/eduoff\/vt-2004\/mt-2003\/mt-mercury-rotation.html) \nhttps:\/\/www.eso.org\/public\/outreach\/eduoff\/vt-2004\/mt-2003\/mt-mercury-day.jpg \nhttps:\/\/www.eso.org\/public\/outreach\/eduoff\/vt-2004\/mt-2003\/mt-mercury-night.jpg\n\nA 20 year old born on mercury would actually only be 10 mercurian days old!",<br>"json_metadata":" \"tags\":[\"mystifact\",<br>\"science\",<br>\"astronomy\" ,<br>\"image\":[\"https:\/\/www.eso.org\/public\/outreach\/eduoff\/vt-2004\/mt-2003\/mt-mercury-day.jpg\",<br>\"https:\/\/www.eso.org\/public\/outreach\/eduoff\/vt-2004\/mt-2003\/mt-mercury-night.jpg\" ,<br>\"links\":[\"https:\/\/www.iau.org\/news\/pressreleases\/detail\/iau0603\/\",<br>\"https:\/\/www.eso.org\/public\/outreach\/eduoff\/vt-2004\/mt-2003\/mt-mercury-rotation.html\" ,<br>\"app\":\"steemit\/0.1\",<br>\"format\":\"markdown\" " |
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