Editing 1298: Exoplanet Neighborhood
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| number = 1298 | | number = 1298 | ||
| date = December 2, 2013 | | date = December 2, 2013 | ||
− | | title = | + | | title = It's a beautiful day in the neighborhood! |
| image = exoplanet_neighborhood.png | | image = exoplanet_neighborhood.png | ||
− | | titletext = | + | | titletext = <nowiki>http://xkcd.com/1298/large/</nowiki> |
}} | }} | ||
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==Explanation== | ==Explanation== | ||
− | The diagram is a | + | The diagram is a graphic representation of all of the currently known exoplanets (planets not in our solar system) within 60 light years of Earth which lie in a {{w|Circumstellar habitable zone|habitable zone}} &mdhas; that is, a planet whose orbit is within a certain range of distance from a star such that water could exist in a liquid state. They are categorized in two ways. By color: a reddish tone denotes planets orbiting stars similar in characterstics to our sun, while grey indicates those that don't; and by size, with planets similar to Earth's size depicted in a slightly darker shade of either color. |
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− | The | + | The aparent conclusion is that there are a significant number of Earth-sized planets orbiting Sun-type stars which could be habitable (and even more possibly-habitable planets around other types of stars or in other sizes). |
− | The title of the comic | + | The title of the comic "It's a beautiful day in the neighborhood!" is an allusion to the former PBS television show [https://en.wikipedia.org/wiki/Mister_Rogers'_Neighborhood "Mister Rogers' Neighborhood"] in which the same line presents itself in the opening song, [https://en.wikipedia.org/wiki/Mister_Rogers'_Neighborhood#Regular_songs "Won't You Be My Neighbor?"]. |
− | + | The title text is a link to a larger version of the comic, found [http://xkcd.com/1298/large/ here]. | |
==Transcript== | ==Transcript== | ||
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:[Center of the image.] | :[Center of the image.] | ||
:Earth | :Earth | ||
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{{comic discussion}} | {{comic discussion}} | ||
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[[Category:Comics with color]] | [[Category:Comics with color]] | ||
[[Category:Astronomy]] | [[Category:Astronomy]] | ||
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