A Mini-Neptune (sometimes known as a gas dwarf or transitional planet) is a planet less massive than Neptune but resembling Neptune in that it has a thick...

a magma ocean planet with a hydrogen-rich atmosphere, and a gas-rich mini-Neptune. K2-18b has been studied as a potential habitable world that, temperature...

discovery of six sub-Neptune exoplanets orbiting the star HD 110067, with radii ranging from 1.94 R🜨 to 2.85 R🜨. Super-Earth Mini-Neptune Mega-Earth The nature...

star Mini-Neptune – Planet smaller than Neptune with a gas atmosphere Neptunian desert – Stellar region without planets equivalent to or above Neptune Ocean...

previous estimates. This would make LHS 1140 b an ocean world or dense mini-Neptune rather than a terrestrial planet. The orbit of LHS 1140 b takes 24.737...

b (also EPIC 211579112.01) is a potentially habitable Super-Earth or Mini-Neptune exoplanet with a radius of 2.2 earths. It is in the empirical habitable...

Constraints on the LHS 1140 Planets -- LHS 1140 b is Either a Temperate Mini-Neptune or a Water World". The Astrophysical Journal Letters. 960 (1): L3. arXiv:2310...

Tau Ceti f is a potential super-Earth or mini-Neptune orbiting Tau Ceti that was discovered in 2012 by statistical analyses of the star's variations in...

one is classified as an Earth-sized planet, while the two others are mini-Neptunes. HD 63433 is a G-type main sequence star with a radius of 0.912 R☉,...

HD 63433 c (TOI-1726 c) is a mini-Neptune exoplanet orbiting the Sun-like star HD 63433. It is the outermost planet in its planetary system, being located...

Proxima c (α Centauri Cc), a mini-Neptune 1.5 AU away discovered in 2019, is controversial. α Centauri A may have a Neptune-sized planet in the habitable...

Dan J. (February 2024). "Distinguishing Oceans of Water from Magma on Mini-Neptune K2-18b". The Astrophysical Journal Letters. 962 (1): L8. arXiv:2401.05864...

Mega-Earth Planets in science fiction § Planet types Stellar classification Sub-Neptune Substellar object Sudarsky's gas giant classification The terms "inferior...

also known as EPIC 201367065 d, is a confirmed exoplanet of probable mini-Neptune type orbiting the red dwarf star K2-3, and the outermost of three such...

more accurate for those at the higher end of the mass scale, although "mini-Neptunes" is a more common term. In general, super-Earths are defined by their...

remnant hydrogen atmosphere, or a hot planet with a steam atmosphere, or a mini-Neptune with a hydrogen–helium atmosphere. Another possibility for a low-mass...

Hot Jupiter Pulsar planet Hypothetical astronomical object Kepler-70 Mini-Neptune Super-Earth KELT-9b Hébrard G., Lecavelier Des Étangs A., Vidal-Madjar...

exoplanets to the Solar System. Proxima Centauri c is a super-Earth or mini-Neptune about 7 times as massive as Earth, orbiting at roughly 1.49 AU (223 million km;...

2010) Neptune Odyssey (proposed in 2022) List of gravitationally rounded objects of the Solar System Lists of astronomical objects Mini-Neptune Planet...

Gaseous Eccentric Jupiter Mini-Neptune (Gas dwarf) Helium planet Hot Jupiter Hot Neptune Gas giant Ice giant Super-Jupiter Super-Neptune Super-puff Ultra-hot...

(6 February 2024). "TESS and ESPRESSO discover a super-Earth and a mini-Neptune orbiting the K-dwarf TOI-238". Astronomy and Astrophysics. 685: A56....

(2022-01-17). "Detection of Ongoing Mass Loss from HD 63433c, a Young Mini-Neptune". The Astronomical Journal. 163 (2): 68. arXiv:2106.05273. Bibcode:2022AJ...

greater than that of Earth. At about 1.87 R🜨, it would most likely be a Mini-Neptune, but its high mass of 9.7 ME implies that it is an iron-rich rocky world...

an ocean world (with 9-19% of its mass composed of water) or a dense mini-Neptune. In July 2018, Feng et al. published a reanalysis of the radial velocity...

K2-288Bb (previously designated EPIC 210693462 b) is a super-Earth or mini-Neptune exoplanet orbiting in the habitable zone of K2-288B, a low-mass M-dwarf...

Kepler-10c is more likely around 7.4 ME, making it a typical volatile-rich mini-Neptune and not a mega-Earth. K2-56b, also designated BD+20594b, is a much more...

too much tidal heating for it to be terrestrial, instead predicting a "mini-Neptune". He thought that b, c, and d had all migrated inward, which extrapolates...

known whether Kepler-452b is a terrestrial planet, an ocean world or a mini-Neptune. If it is an Earth-like telluric object, it is likely to have a higher...

may be more gaseous than they are rocky, so Kepler-62e may likely be a mini-Neptune. It has an equilibrium temperature of 270 K (−3 °C; 26 °F). It has an...

massive planet discovered in the system and is likely a super-Earth or a mini-Neptune. Orbital-stability analysis indicates that it cannot be more than twice...