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...
15 KB (1,491 words) - 17:47, 28 August 2024
a magma ocean planet with a hydrogen-rich atmosphere, and a gas-rich mini-Neptune. Although previously believed to be uninhabitable, K2-18b has been studied...
42 KB (4,923 words) - 16:30, 16 October 2024
star Mini-Neptune – Planet smaller than Neptune with a gas atmosphere Neptunian desert – Stellar region without planets equivalent to or above Neptune Ocean...
10 KB (852 words) - 02:26, 24 May 2024
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...
4 KB (395 words) - 12:01, 21 September 2024
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...
15 KB (1,630 words) - 02:49, 29 September 2024
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...
7 KB (817 words) - 18:06, 12 March 2024
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...
57 KB (3,065 words) - 12:47, 9 October 2024
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...
12 KB (958 words) - 09:46, 30 June 2024
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...
118 KB (11,171 words) - 05:00, 12 October 2024
Mega-Earth Planets in science fiction § Planet types Stellar classification Sub-Neptune Substellar object Sudarsky's gas giant classification The terms "inferior...
13 KB (547 words) - 05:07, 25 August 2024
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...
7 KB (810 words) - 19:24, 25 June 2024
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;...
10 KB (696 words) - 00:31, 16 October 2024
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☉,...
28 KB (2,778 words) - 23:41, 10 August 2024
Hot Jupiter Pulsar planet Hypothetical astronomical object Kepler-70 Mini-Neptune Super-Earth KELT-9b Hébrard G., Lecavelier Des Étangs A., Vidal-Madjar...
8 KB (805 words) - 09:12, 29 July 2024
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...
63 KB (7,202 words) - 06:57, 18 September 2024
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...
56 KB (6,536 words) - 15:27, 4 October 2024
2010) Neptune Odyssey (proposed in 2022) List of gravitationally rounded objects of the Solar System Lists of astronomical objects Mini-Neptune Planet...
20 KB (2,326 words) - 11:44, 8 October 2024
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...
22 KB (2,167 words) - 14:38, 4 October 2024
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...
11 KB (1,156 words) - 20:46, 29 January 2024
(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...
26 KB (3,137 words) - 22:19, 21 September 2024
(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....
110 KB (6,717 words) - 19:32, 16 October 2024
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...
10 KB (1,187 words) - 14:27, 22 August 2024
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...
8 KB (878 words) - 19:06, 31 July 2024
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...
15 KB (1,400 words) - 21:00, 6 October 2024
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...
14 KB (1,022 words) - 04:40, 18 July 2024
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...
3 KB (213 words) - 17:16, 29 October 2023
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...
8 KB (638 words) - 11:05, 26 May 2024
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...
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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...
9 KB (795 words) - 20:04, 4 October 2024
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...
35 KB (3,485 words) - 23:02, 3 May 2024