Types of Exoplanets
Exoplanet Type↕ | Famous Example↕ | Host Star↕ | Distance (light-years)↕ | Discovered↕ | Known For↕ |
|---|---|---|---|---|---|
Hot Jupiter | 51 Pegasi b (Dimidium) | 51 Pegasi | 50 | 1995 | First exoplanet found around Sun-like star, Nobel Prize 2019 |
Super-Earth | Gliese 581c | Gliese 581 | 20 | 2007 | Early candidate for habitable zone rocky world |
Mini-Neptune | GJ 1214 b | GJ 1214 | 48 | 2009 | Thick hydrogen atmosphere, steamy ocean world candidate |
Earth Analog | Kepler-452b | Kepler-452 | 1,800 | 2015 | Earth's older cousin, 1.6x Earth radius in habitable zone |
Water World | Kepler-22b | Kepler-22 | 620 | 2011 | First Kepler planet confirmed in habitable zone of Sun-like star |
Rogue Planet | PSO J318.5-22 | None (starless) | 80 | 2013 | Free-floating planetary-mass object, ~6 Jupiter masses |
Lava Planet | 55 Cancri e (Janssen) | 55 Cancri A | 41 | 2004 | Surface temperature 2000 K, possible carbon-rich composition |
Tatooine (Circumbinary) | Kepler-16b | Kepler-16 binary | 245 | 2011 | First confirmed planet orbiting two stars, real-life Tatooine |
Pulsar Planet | PSR B1257+12 b | Pulsar PSR B1257+12 | 2,300 | 1992 | First confirmed exoplanets, orbiting a pulsar |
Diamond Planet (Carbon) | 55 Cancri e (proposed) | 55 Cancri A | 41 | 2012 | Proposed carbon-rich composition possibly yielding diamond interior |
TRAPPIST-1 Habitable | TRAPPIST-1e | TRAPPIST-1 (ultracool dwarf) | 40 | 2017 | One of 7 rocky planets in system, likely temperate |
Ultra-Short Period | Kepler-78b | Kepler-78 | 407 | 2013 | Orbits star in 8.5 hours, Earth-sized lava world |
Proxima b | Proxima Centauri b | Proxima Centauri | 4.2 | 2016 | Closest known exoplanet, in habitable zone of nearest star |
Puffy / Low Density | WASP-17b | WASP-17 | 1,300 | 2009 | Density less than cork, retrograde orbit |
Eyeball Planet | Gliese 581g (candidate) | Gliese 581 | 20 | 2010 | Tidally locked, one hemisphere liquid water theoretically |
Directly Imaged | HR 8799 b,c,d,e | HR 8799 | 129 | 2008 | First directly imaged multi-planet system |
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This dataset contains 16 entries, each with multiple sortable, filterable columns. The full table is visible on this page and can be downloaded as a CSV, JSON, or Excel file.
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