Best Neptune Class
Kepler-47b is a transiting circumbinary exoplanet located in the Kepler-47 system, which was announced in 2012. It was part of the first system discovered to host multiple planets orbiting a binary star pair. The planet completes an orbit around the two host stars approximately every 49 days. It is...
HAT-P-11b is a Neptune-sized exoplanet discovered by the HATNet survey, orbiting the orange dwarf star HAT-P-11. It was one of the first small exoplanets to have water vapor successfully detected in its atmosphere, achieved via observations by the Hubble Space Telescope. The planet has a highly ecce...
Kepler-36c is a transiting exoplanet orbiting the star Kepler-36 and was reported in 2012 from observations by NASA's Kepler mission. It is larger and less dense than neighboring Kepler-36b, indicating a substantial volatile envelope rather than a predominantly rocky composition. The two planets hav...
TOI-1338 b is a circumbinary exoplanet discovered in 2020 by NASA's Transiting Exoplanet Survey Satellite (TESS). It was the first circumbinary planet identified by the TESS mission, orbiting a binary star system composed of an orange dwarf and a red dwarf located roughly 1,300 light-years away in t...
GJ 436 b is a Neptune-sized exoplanet orbiting the red dwarf star GJ 436, located approximately 33 light-years from Earth. Discovered in 2004 via radial velocity measurements and later confirmed as a transiting planet, it has a mass and radius similar to Neptune. The planet orbits very close to its...
HD 69830 d is an extrasolar planet orbiting the K-type orange dwarf star HD 69830, located approximately 41 light-years away in the constellation Puppis. Discovered in 2006 through radial velocity measurements, it is the outermost of three confirmed Neptune-mass planets within the system. The planet...
The innermost of three Neptune-mass planets discovered in 2006 around HD 69830, a system also hosting a prominent warm debris disk analogous to an asteroid belt.
Gliese 581 b is a hot Neptune-mass planet and the first discovered in the Gliese 581 system, detected by the HARPS spectrograph in 2005 around an M-dwarf ~20 light-years away.
The middle planet in the HD 69830 three-Neptune system announced in 2006, orbiting its K-type host star at about 0.19 AU with a period of roughly 31.6 days.
A Saturn-mass planet in the 55 Cancri system discovered in 2002, orbiting every 44 days between the innermost and the more distant giant planets.
HD 10180 e is a roughly Earth- to Neptune-mass exoplanet orbiting HD 10180 about 127 light-years away, one of multiple planets confirmed in 2010 using radial-velocity data from HARPS.
HD 10180 d is a Neptune-mass exoplanet orbiting the star HD 10180 about 127 light-years away, part of a system with at least six planets discovered in 2010 using the HARPS spectrograph.
HD 10180 f is a super-Earth or mini-Neptune exoplanet orbiting HD 10180 about 127 light-years away, part of a multi-planet system announced in 2010 based on HARPS radial-velocity data.
The outermost of three super-Earths found in 2009 around 61 Virginis, orbiting every 123 days with a minimum mass of approximately 22.9 Earth masses.
A Neptune-like exoplanet discovered in 2013, notable for being one of the longest-period planets detected using the radial velocity method around an M-dwarf host star.
Super-Earth of roughly 14 Earth masses orbiting the metal-poor G-type star HD 4308, announced in 2005 as one of the lightest exoplanets then known around a Sun-like star.
A super-Earth exoplanet confirmed in 2017, notable for being the innermost known planet in the GJ 3293 system, orbiting a red dwarf star located about 65 light-years away.
