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==Explanation== | ==Explanation== | ||
− | An {{w|exoplanet}} is a planet outside of our solar system, orbiting a different | + | An {{w|exoplanet}} is a planet outside of our solar system, orbiting a different sun. [[786: Exoplanets|786]] planets were known in mid-2012: 778 exoplanets and the rest in our Solar System. |
Since then, astronomers have found thousands more. In the comic, our {{w|Solar System}}'s eight planets are depicted in the small rectangle above the central text. From this we find that the largest dots (red) and second largest dots (dark brown) indicate planets larger than Jupiter, light brown is roughly {{w|Jupiter}} or {{W|Saturn}}-sized, blue is roughly {{w|Uranus}} or {{w|Neptune}}-sized, and the tiny dots are small {{w|terrestrial planets}} (like {{w|Earth}}). | Since then, astronomers have found thousands more. In the comic, our {{w|Solar System}}'s eight planets are depicted in the small rectangle above the central text. From this we find that the largest dots (red) and second largest dots (dark brown) indicate planets larger than Jupiter, light brown is roughly {{w|Jupiter}} or {{W|Saturn}}-sized, blue is roughly {{w|Uranus}} or {{w|Neptune}}-sized, and the tiny dots are small {{w|terrestrial planets}} (like {{w|Earth}}). | ||
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This comic's design is similar to the {{w|color perception test|Ishihara Color Test}}, a series of circular pictures made of colored dots, used to detect red-green color blindness. However, Randall's picture probably does not contain a hidden number like it did in [[1213: Combination Vision Test]]. | This comic's design is similar to the {{w|color perception test|Ishihara Color Test}}, a series of circular pictures made of colored dots, used to detect red-green color blindness. However, Randall's picture probably does not contain a hidden number like it did in [[1213: Combination Vision Test]]. | ||
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+ | Two different xkcd comics have the title "Exoplanets". The first was [[786: Exoplanets]], and this one was drawn at a time when 786 exoplanets had been found. Probably not a coincidence when it comes to [[Randall]]. This is the first time Randall released a comic with the exact same name as a previous comic. Since then he has done so [[:Category:Comics sharing name|a few times]]. When this comic was released it caused problems on xkcd as the title of the image files were the same for the two comics. This was resolved by renaming the original image adding the year 2010, the year when it was released, two years before this one was released. | ||
See also [[:Category:Exoplanets]] and this {{w|lists of planets#Orbiting other stars|list of lists of exoplanets}}. | See also [[:Category:Exoplanets]] and this {{w|lists of planets#Orbiting other stars|list of lists of exoplanets}}. | ||
==Transcript== | ==Transcript== | ||
− | :[ | + | :[An large diagram of dots, mostly of varying shades of brown and greenish yellow, with a number of smaller blue dots, tiny green dots and some larger red dots. At the top of the circle are five lines of text in very different font size.] |
:<big>All 786 known</big> | :<big>All 786 known</big> | ||
:<big><big><big>planets</big></big></big> | :<big><big><big>planets</big></big></big> | ||
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:We know nothing about what's on any of them. With better telescopes, that could change. | :We know nothing about what's on any of them. With better telescopes, that could change. | ||
:'''This is an exciting time.''' | :'''This is an exciting time.''' | ||
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{{comic discussion}} | {{comic discussion}} |