[Exoplanet]: Moon
[Radius (R⊕) (Earth = 1)]: 0.273925995
[Notes]: Shown for comparison
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[Exoplanet]: Kepler-141 b
[Radius (R⊕) (Earth = 1)]: 0.69
[Notes]:
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[Exoplanet]: PSR B1828-11 b
[Radius (R⊕) (Earth = 1)]: 0.016
[Notes]: Unconfirmed, controversial
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[Exoplanet]: WD 1145+017 b
[Radius (R⊕) (Earth = 1)]: ~0.15
[Notes]: Controversial, Possibly least massive exoplanet.
(List)
[Exoplanet]: Kepler-138 b
[Radius (R⊕) (Earth = 1)]: 0.52
[Notes]:
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[Exoplanet]: PSR B1257+12 b
[Radius (R⊕) (Earth = 1)]: 0.338?
[Notes]: Least massive exoplanet, at 0.02 Earth masses.
(List)
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About This Tool
NASA’s Tess recently discovered a tiny exoplanet, just 80 percent the size of earth, 10 percent smaller than the smallest exoplanet they’ve ever found. For those of you who follow astronomy regularly, there are only about 37 exoplanets that scientists have found so far, and the list is compiled in this random tool.
Currently, exoplanets discovered by scientists are generally larger than Earth, especially gas giants such as Hot Jupiter and Hot Neptune, and even rocky planets are generally slightly larger than Earth. The larger the exoplanet, the easier it is to detect, whether by transit or by other means. As a result, many of the smaller exoplanets are still hard for humans to find. The presence of smellest planets, as collated by the generator, overturns previous claims by scientists that there are many, many, many planets in the universe that we don’t know about, and is profound and thought provoking.
Click the "Display All Items" button and you will get a list of smallest exoplanets.
