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* {{Cite web|url=https://www.businessinsider.com/what-is-super-earth-2018-6|title=Super-Earths are real and they could be an even better place to live than Earth|first1=María Soledad |last=González Romero |first2=Jordan|last2=Bowman|website=]|date=July 29, 2019|accessdate=August 19, 2019}} | |||
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"There have been several discoveries of Super-Earths since the first discovery in 2005 by a team lead by Eugenio Rivera of Gliese 876 d." | |||
== External links modified (January 2018) == | |||
This makes it sound like Rivera is from Gliese 876 d....--] 21:37, 27 April 2007 (UTC) | |||
Hello fellow Wikipedians, | |||
Okay this is only a first grade "Assesment" article but I have to insist that you follow the Encyclopia guidelines to not use spectulation as fact. No "Super-Earth" type planets have been photographed and they are all HPOs (Hypothetical Planetary Objects). The light from these stars is decades, hundred, and in some cases thousands of years old, and so the possibility of a planet still being there is pure speculation! | |||
Please refrain from refering to planets, whose signature star-wobble has been detected, as a currently present verifed object. One piece of raw data creating a long list of possible calculated attributes is still catagorically speculation. | |||
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] (]) 00:15, 1 January 2008 (UTC) | |||
*Added archive https://web.archive.org/web/20120301185812/http://www.ice.csic.es/en/view_new.php?NID=18 to http://www.ice.csic.es/en/view_new.php?NID=18 | |||
:Gabriel, please see ]. Yes, the light from Gliese 581 takes 20.4 years to reach the Earth, but that doesn't mean that the star isn't there, or that the planet isn't. Gliese 581 is moving around as though it is being pulled by three planetary mass objects, therefore there are three planets around it (see ]). Now, there is a valid criticism of the radial-velocity detection method - technically it only measures minimum values for the mass of the planets. Getting the absolute values will need to wait a while, so that we can measure the perturbations the planets have on each other. But the probability is pretty good that the planets are low enough mass to be solid. ] (]) 02:31, 1 January 2008 (UTC) | |||
*Added archive https://web.archive.org/web/20080619195046/http://afp.google.com/article/ALeqM5hhYYap4TAzGczvvDL51n97ryHo9A to http://afp.google.com/article/ALeqM5hhYYap4TAzGczvvDL51n97ryHo9A | |||
:: Ockham's Razor says "the explanation of any phenomenon should make as few assumptions as possible, eliminating those that make no difference in the observable predictions of the explanatory hypothesis or theory." I can say there are many possible objects that cause the wobble of a star, objects of many possible densities, so you fail to follow this theorem that you quote when you assume a planet size. I doesn't have to be a "Super-Terrestrial" (proper term), when it can be a Gas Dwarf (100% gas for that mass), or a ball of '''].''' The use of the term "]" here is ''']''' assumption, but nevertheless not a ''']''' assumption. A major error here is the use of the term "Earth," when "Terrestrial" is less of an assumption, as per your quote of''' Ockham's Razor.''' You say "Getting the absolute values will need to wait..." which is an admission of the level of speculation involed. And, as it been pointed out to me, this Encyclopedia is about fact not speculation. | |||
*Added archive https://www.webcitation.org/68uUsn7yC?url=http://exoplanet.eu/star.php?st=Gl+581 to http://exoplanet.eu/star.php?st=Gl+581 | |||
*Added archive https://web.archive.org/web/20110309132609/http://blogs.discovermagazine.com/80beats/2011/03/08/exclusive-most-earth-like-exoplanet-gets-major-demotion%e2%80%94it-isnt-habitable/ to http://blogs.discovermagazine.com/80beats/2011/03/08/exclusive-most-earth-like-exoplanet-gets-major-demotion%e2%80%94it-isnt-habitable/ | |||
*Added archive https://web.archive.org/web/20120504184330/http://www.cosmosmagazine.com/node/1658 to http://www.cosmosmagazine.com/node/1658 | |||
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Cheers.—] <span style="color:green;font-family:Rockwell">(])</span> 20:58, 25 January 2018 (UTC) | |||
== A Super-Earth Definition == | |||
Most astronomers consider a Super-Earth to be a planet with a mass between Earth and Neptune. But this definition is wrong. A Super-Earth should be compared between Earth and Uranus. Uranus has a lower mass than Neptune, but it's mass is still 14 times that of Earth. Neptune has 17 Earth masses. According to the definition astronomers generally use, Uranus is an ice dwarf or gas dwarf, or a Super-Earth. ] (]) 00:45, 29 November 2022 (UTC) |
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External links modified (January 2018)
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A Super-Earth Definition
Most astronomers consider a Super-Earth to be a planet with a mass between Earth and Neptune. But this definition is wrong. A Super-Earth should be compared between Earth and Uranus. Uranus has a lower mass than Neptune, but it's mass is still 14 times that of Earth. Neptune has 17 Earth masses. According to the definition astronomers generally use, Uranus is an ice dwarf or gas dwarf, or a Super-Earth. 65.34.40.139 (talk) 00:45, 29 November 2022 (UTC)
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