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searching for Sub-Neptune 54 found (112 total)

Gliese 674 b (165 words) [view diff] exact match in snippet view article find links to article

constellation of Ara. This planet orbits tightly around Gliese 674. It is a sub-Neptune-or-Uranus-mass planet either gaseous or rocky. It orbits as close as

Kepler-277b (706 words) [view diff] exact match in snippet view article find links to article

Discovered in 2014 by the Kepler Space Telescope, Kepler-277b is a sub-Neptune sized exoplanet with a very high mass and density for an object of its

K2-66b (505 words) [view diff] exact match in snippet view article find links to article

A.; Lépine, Sébastien (2017). "K2-66b and K2-106b: Two Extremely Hot Sub-Neptune-size Planets with High Densities". The Astronomical Journal. 153 (6):

K2-18 (936 words) [view diff] exact match in snippet view article find links to article

is the first exoplanet in the habitable zone, albeit a hydrogen-rich sub-Neptune, to have its atmosphere characterized; initially thought to contain water

HD 40307 e (517 words) [view diff] exact match in snippet view article find links to article

and planet b is predicted a sub-Neptune. It is likely that this planet formed even further out. Whether it is a sub-Neptune, a super-Venus or even a super-Mercury

HD 21749 (1,091 words) [view diff] exact match in snippet view article find links to article

was discovered that the star has two exoplanets: a possibly rocky, hot sub-Neptune-sized exoplanet named HD 21749 b; and an Earth-sized exoplanet named

HD 40307 d (770 words) [view diff] exact match in snippet view article find links to article

b had to be a sub-Neptune. All the planets from b to at least f must have migrated inward. That study implied that d was a sub-Neptune as well. As such

K2-138 (1,317 words) [view diff] exact match in snippet view article find links to article

Martti H. (2018-01-11). "The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists". The Astronomical Journal.

Trident (spacecraft) (672 words) [view diff] exact match in snippet view article

m). Cassini camera and LORRI (New Horizons) (Ball) Wide-angle camera Sub-Neptune and haze imaging and change detection (≤ 2,500 m). Ralph and Cassini

K2-138b (518 words) [view diff] exact match in snippet view article find links to article

(11 January 2018). "The K2-138 System: A Near-Resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists". The Astronomical Journal.

K2-28 (585 words) [view diff] exact match in snippet view article find links to article

super-Earth sized planet in a close orbit around a red dwarf star. K2-28b is a sub-Neptune sized planet orbiting its star in only 2.26 days. Despite its short orbital

HD 40307 f (623 words) [view diff] exact match in snippet view article find links to article

presumed to have migrated in from outer orbits; and planet b is predicted a sub-Neptune. Tuomi, Mikko; Anglada-Escudé, Guillem; Gerlach, Enrico; Jones, Hugh

Kepler-28 (409 words) [view diff] exact match in snippet view article find links to article

this star is too faint to be seen with the naked eye. The two warm sub-Neptune gas giant planets of Kepler-28 were discovered in 2011 and were confirmed

TOI-2257 b (1,243 words) [view diff] exact match in snippet view article find links to article

habitable zone of the star TOI-2257, 188 light-years away. It is likely a sub-Neptune exoplanet, with a mass of 5.71 Mearth and a radius of 2.19 Rearth. As

Kepler-27 (448 words) [view diff] exact match in snippet view article find links to article

equilibrium temperatures of 610 K and 481 K, respectively. In 2021, a third, sub-Neptune-sized planet was confirmed, orbiting closer in than the other two planets

HD 219134 g (912 words) [view diff] exact match in snippet view article find links to article

probably a Neptune-like planet, it is likely larger. HD 219134 g is a sub-Neptune-mass exoplanet with a minimum mass of 10.8 ME and an unknown radius,

Ruprecht 147 (510 words) [view diff] exact match in snippet view article find links to article

Curtis, Jason Lee; Vanderburg, Andrew; et al. (April 2018). "K2-231 b: A Sub-Neptune Exoplanet Transiting a Solar Twin in Ruprecht 147". The Astronomical

HD 40307 c (769 words) [view diff] exact match in snippet view article find links to article

restrict ice giant planets like Neptune or Uranus. HD 40307 c might be a sub-Neptune. Since the same tides are predicted to result in the destruction of larger

G 9-40 b (176 words) [view diff] exact match in snippet view article find links to article

exoplanets discovered in 2019 Stefánsson, Guðmundur; et al. (2019), "A sub-Neptune sized planet transiting the M2.5-dwarf G 9-40: Validation with the Habitable-zone

Kepler-223 (538 words) [view diff] exact match in snippet view article find links to article

; Isaacson, H. (11 May 2016). "A resonant chain of four transiting, sub-Neptune planets". Nature. 533 (7604): 509–512. arXiv:1612.07376. Bibcode:2016Natur

Kepler-26 (614 words) [view diff] exact match in snippet view article find links to article

discovered by transit method in late 2011, and classified as small (sub-Neptune) gas giants in 2016. In 2012, the planetary candidate Kepler-26d was

GJ 3470 b (1,316 words) [view diff] exact match in snippet view article find links to article

Jonathan; Gilliland, Ronald; Deming, Drake; Kammer, Joshua (2019). "A sub-Neptune exoplanet with a low-metallicity methane-depleted atmosphere and Mie-scattering

HD 86226 b (238 words) [view diff] exact match in snippet view article find links to article

2020-01-10. Teske, Johanna; et al. (2020), "TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet", The Astronomical

HD 190007 (842 words) [view diff] exact match in snippet view article find links to article

from the Lick–Carnegie Exoplanet Survey: Exploring the Super-Earth and Sub-Neptune Mass Regime". The Astronomical Journal. 161 (1): 10. arXiv:2011.08867

Orbital resonance (10,205 words) [view diff] exact match in snippet view article find links to article

; Isaacson, H. (11 May 2016). "A resonant chain of four transiting, sub-Neptune planets". Nature. 533 (7604): 509–512. arXiv:1612.07376. Bibcode:2016Natur

HD 86226 (822 words) [view diff] exact match in snippet view article find links to article

VizieR. Teske, Johanna; et al. (2020). "TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet". The Astronomical

GJ 3470 (1,477 words) [view diff] exact match in snippet view article find links to article

Jonathan; Gilliland, Ronald; Deming, Drake; Kammer, Joshua (2019). "A sub-Neptune exoplanet with a low-metallicity methane-depleted atmosphere and Mie-scattering

Next-Generation Transit Survey (2,495 words) [view diff] exact match in snippet view article find links to article

well-placed to do just that." On 3 September 2018, the discovery of NGTS-4b, a sub-Neptune-sized planet transiting a 13th magnitude K-dwarf in a 1.34 day orbit

HD 215152 (1,035 words) [view diff] exact match in snippet view article find links to article

has a 3σ level of certainty. HD 215152 has a total of four confirmed sub-Neptune mass planets, all of which are probably rocky. With all of the planets

Gliese 686 (887 words) [view diff] exact match in snippet view article find links to article

from the Lick–Carnegie Exoplanet Survey: Exploring the Super-Earth and Sub-Neptune Mass Regime", The Astronomical Journal, 161 (1): 10, arXiv:2011.08867

GJ 9827 (1,038 words) [view diff] exact match in snippet view article find links to article

Megan (2020). "Non-detection of Helium in the Upper Atmospheres of Three Sub-Neptune Exoplanets". The Astronomical Journal. 160 (6): 258. arXiv:2007.12968

Gliese 555 (557 words) [view diff] exact match in snippet view article find links to article

is a super-Earth or mini-Neptune (the discovery paper uses the term "sub-Neptune") with a minimum mass of 5.5 Earths and a period of 36 days, placing

Kepler-28b (367 words) [view diff] exact match in snippet view article find links to article

radial velocity data made it possible to classify Kepler-28b as a small (sub-Neptune) gas giant. Steffen, J.; Fabrycky, D. (2012). "Transit Timing Observations

Kepler-37 (1,411 words) [view diff] exact match in snippet view article find links to article

51 days is present, marginal radial velocity evidence was found for a sub-Neptune mass planet. Evidence of a longer-period planet candidate was also found

HD 97658 (1,109 words) [view diff] exact match in snippet view article find links to article

(2020). "Non-detection of Helium in the Upper Atmospheres of Three Sub-Neptune Exoplanets". The Astronomical Journal. 160 (6): 258. arXiv:2007.12968

GJ 1214 b (1,884 words) [view diff] exact match in snippet view article find links to article

Megan (2020). "Nondetection of helium in the upper atmospheres of three sub-Neptune exoplanets". The Astronomical Journal. 160 (6): 258. arXiv:2007.12968

Gliese 146 (772 words) [view diff] exact match in snippet view article find links to article

debris disk was not detected by any survey as in 2015 though. In 2021, a Sub-Neptune planet HD 22496b was discovered utilizing a Doppler spectroscopy method

CoRoT-24b (269 words) [view diff] exact match in snippet view article find links to article

Güdel, M. (September 2016). "Identifying the 'true' radius of the hot sub-Neptune CoRoT-24b by mass-loss modelling". Monthly Notices of the Royal Astronomical

Gliese 752 (1,158 words) [view diff] exact match in snippet view article find links to article

from the Lick–Carnegie Exoplanet Survey: Exploring the Super-Earth and Sub-Neptune Mass Regime", The Astronomical Journal, 161 (1): 10, arXiv:2011.08867

TOI-561 (1,768 words) [view diff] exact match in snippet view article find links to article

of a data gap. Weiss attributes the two transits to that of a single Sub-Neptune sized planet. However, in the radial velocity analysis by Lacedelli 2020

HD 3167 (1,283 words) [view diff] exact match in snippet view article find links to article

Mikal-Evans, Thomas; et al. (2020), "Transmission Spectroscopy for the Warm Sub-Neptune HD 3167c: Evidence for Molecular Absorption and a Possible High-metallicity

K2-332 b (817 words) [view diff] exact match in snippet view article find links to article

life exist in the atmosphere of a sub-Neptune planet?". phys.org. Retrieved November 21, 2023. "Properties of sub-Neptune atmospheres: TOI-270 system". academic

TOI-270 (622 words) [view diff] exact match in snippet view article find links to article

"Hubble Space Telescope Transmission Spectroscopy for the Temperate Sub-Neptune TOI-270 d: A Possible Hydrogen-rich Atmosphere Containing Water Vapor"

Jessie Christiansen (1,013 words) [view diff] exact match in snippet view article find links to article

(11 January 2018). "The K2-138 System: A Near-Resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists". The Astronomical Journal.

Diana Valencia (944 words) [view diff] case mismatch in snippet view article find links to article

Richard S. (29 August 2013). "BULK COMPOSITION OF GJ 1214b AND OTHER SUB-NEPTUNE EXOPLANETS". The Astrophysical Journal. 775 (1): 10. arXiv:1305.2629

Lyra (7,380 words) [view diff] exact match in snippet view article find links to article

Peter; Van Cleve, Jeffrey (2012). "Kepler-20: A Sun-Like Star with Three Sub-Neptune Exoplanets and Two Earth-Size Candidates". The Astrophysical Journal

Planet Hunters (3,365 words) [view diff] exact match in snippet view article find links to article

Cortes-Zuleta, P.; de Almeida, L. (2022-04-01). "TOI-1759 b: A transiting sub-Neptune around a low mass star characterized with SPIRou and TESS". Astronomy

TRAPPIST-1 (19,770 words) [view diff] exact match in snippet view article find links to article

Raymond, Sean N.; Owen, James E. (2021). "The Nature and Origins of Sub-Neptune Size Planets". Journal of Geophysical Research: Planets. 126 (1): e2020JE006639

Avi Loeb (4,982 words) [view diff] exact match in snippet view article find links to article

Howard Chen of Northwestern University, Loeb made another prediction that sub-Neptune-sized exoplanets have been transformed into rocky super-Earths by the

TESS Hunt for Young and Maturing Exoplanets (1,186 words) [view diff] exact match in snippet view article find links to article

(2021-04-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). V. A Sub-Neptune Transiting a Young Star in a Newly Discovered 250 Myr Association". The

List of smallest known stars (11,285 words) [view diff] exact match in snippet view article find links to article

Sam; Gonzales, Erica; Everett, Mark (2019-09-19). "A Super-Earth and Sub-Neptune Transiting the Late-type M Dwarf LP 791-18". The Astrophysical Journal

TOI-1136 (354 words) [view diff] exact match in snippet view article find links to article

seventh planet was also identified. This candidate planet would also be sub-Neptune-sized, but its orbit is poorly constrained. If this is confirmed, it

HD 152843 (500 words) [view diff] exact match in snippet view article find links to article

(October 2023). "HD152843 b & c: the masses and orbital periods of a sub-Neptune and a super-puff Neptune". arXiv:2310.15068 [astro-ph.EP]. "HD 152843

List of coolest exoplanets (2,482 words) [view diff] exact match in snippet view article find links to article

George R.; Vanderspek, Roland (2020-08-01). "TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet". The Astronomical