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Best Transiting

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Rankings use category fit, feature coverage, pricing signals, public reception, and recency. Affiliate relationships do not affect scores.

0.0 - 10.0
Best 1 TRAPPIST-1e

TRAPPIST-1e is an Earth-sized exoplanet orbiting the ultra-cool dwarf star TRAPPIST-1. Its location within the habitable zone—the region around a star where liquid water could exist on a planet’s surface—makes it notable. Scientists study this world to assess its potential for hosting conditions sui...

2 HD 209458 b

HD 209458 b is a giant exoplanet orbiting a Sun-like star approximately 153 light-years away. It gained significant attention as the first planet detected through the transit method in 1999. Scientists identified an escaping hydrogen atmosphere, marking the initial confirmation of such atmospheric l...

Exoplanet Giant Hot Jupiter Transiting Atmosphere Detected First Transit
3 TRAPPIST-1f

TRAPPIST-1f is an Earth-sized exoplanet orbiting the TRAPPIST-1 star. It resides within the habitable zone where liquid water could exist on its surface. Its larger size and lower stellar flux compared to our Sun may result in significant ice coverage. Scientists study this planet for potential sign...

4 KELT-9b
KELT-9b

KELT-9b is a giant exoplanet orbiting the star HD 189733A. It’s notable as the hottest known planet, boasting a dayside temperature exceeding 4,000 Kelvin – hotter than many stars. This ultrahot Jupiter was discovered by the Kentucky Extrasolar Traniting Survey (KELT) in 2017 and is of interest to a...

Exoplanet Giant Hot Jupiter Transiting Ultrahot Highest Temp
5 TRAPPIST-1g

TRAPPIST-1g is an Earth-sized exoplanet orbiting the TRAPPIST-1 star. Its notable size, approximately 1.13 times that of Earth, and location within the habitable zone make it a key target in the search for potentially life-supporting worlds. Scientists study this rocky planet to assess its atmospher...

6 Kepler-16b
Kepler-16b

Kepler-16b is a giant exoplanet orbiting two stars. Its notable feature is its circumbinary orbit, meaning it circles both stars simultaneously—a configuration similar to the fictional planet Tatooine. This discovery, made by NASA’s Kepler mission, offers scientists an opportunity to study planetary...

7 HD 189733 b

HD 189733 b is a gas giant exoplanet orbiting a Sun-like star approximately 63 light-years away. It’s notable for possessing a surprisingly detailed atmosphere, allowing scientists to study extreme weather conditions. High-speed winds composed of iron and silicate particles have been observed within...

8 WASP-76b
WASP-76b

WASP-76b is an exoplanet orbiting a distant star, classified as a “hot Jupiter.” Its notable characteristic is its extremely dense atmosphere containing iron vapor. Observations reveal iron rain occurring on the planet’s nightside due to temperature variations. This phenomenon, confirmed through spe...

9 K2-18b
K2-18b

K2-18b is a sub-Neptune exoplanet orbiting the M dwarf star K2-18. Located within its star’s habitable zone, it has garnered significant attention due to potential liquid water on its surface. Scientists are studying this planet to understand atmospheric compositions and assess conditions suitable f...

10 TRAPPIST-1d

TRAPPIST-1d is an Earth-sized exoplanet orbiting the TRAPPIST-1 star. It resides within the system's habitable zone, raising possibilities for liquid water on its surface. The planet’s rocky composition and size make it a subject of interest for astronomers studying potentially habitable worlds beyo...

11 WASP-96b
WASP-96b

WASP-96b is a giant exoplanet orbiting a star approximately 843 light-years away. Its atmosphere was studied extensively using the James Webb Space Telescope, yielding one of the earliest publicly available datasets for analyzing exoplanetary atmospheres. This data provides valuable insights into th...

12 TRAPPIST-1c

TRAPPIST-1c is an Earth-sized exoplanet orbiting the ultracool dwarf star TRAPPIST-1. Located within the TRAPPIST system, it’s notable for its potential habitability due to its size and proximity to its star. The planet transits its star regularly making it a target for atmospheric study. Scientists...

13 Kepler-442b

Kepler-442b is an exoplanet orbiting a cooler star approximately 1,200 light-years from Earth. Its size and position within its star’s habitable zone make it notable for potential liquid water on its surface. Scientists study this super-Earth to understand the diversity of planets capable of support...

14 WASP-39b
WASP-39b

WASP-39b is a giant exoplanet orbiting a Sun-like star approximately 700 light-years away. The James Webb Space Telescope’s detailed observations in 2022 revealed its substantial atmosphere containing key molecules such as carbon dioxide, sulfur dioxide, and water vapor. This data provides valuable...

15 Kepler-62f
Kepler-62f

Kepler-62f is an exoplanet located in the Kepler-62 system. It’s notable as a super-Earth orbiting a red dwarf star within its habitable zone. This means it receives approximately the same amount of energy from its star as Earth does, raising possibilities for liquid water on its surface. The planet...

16 Kepler-22b
Kepler-22b

Kepler-22b is an exoplanet orbiting a G-type star similar to our Sun. Discovered by NASA’s Kepler mission in 2011, it resides within its star's habitable zone, the region where liquid water could potentially exist on a planet’s surface. This “super-Earth,” roughly 2.4 times Earth’s size, is notable...

17 TRAPPIST-1b

TRAPPIST-1b is an Earth-sized exoplanet orbiting the ultra compact M-dwarf star TRAPPIST-1. Located 39 light-years from Earth, it’s notable as the closest planet to our solar system and one of seven similar-sized planets in a tightly packed arrangement. Scientists study this transiting planet to und...

18 Kepler-90i
Kepler-90i

Kepler-90i is an Earth-sized exoplanet orbiting within the habitable zone of its star, Kepler-90. Its discovery in 2017 was notable as it represented the first confirmed system containing eight planets. The planet’s detection utilized machine learning analysis of data from NASA's Kepler mission. Thi...

19 WASP-12b
WASP-12b

WASP-12b is a massive exoplanet orbiting the star WASP-12. This “hot Jupiter” exhibits an exceptionally short orbital period of approximately one Earth day due to its tight proximity to the star. The planet’s rapid movement and intense heat make it a valuable subject for studying atmospheric process...

20 Kepler-62e
Kepler-62e

Kepler-62e is an exoplanet orbiting the star Kepler-62. It’s notable as a super-Earth residing within its star's habitable zone, the region where liquid water could potentially exist on the planet’s surface. This makes it of interest to astronomers studying the possibility of other Earth-like worlds...

21 TrES-2b
TrES-2b

TrES-2b is a giant exoplanet orbiting the star GSC 03549-02807. It’s notable as the darkest known exoplanet, reflecting extremely little light – less than one percent. This makes it a valuable subject for studying planetary atmospheres and extreme conditions. Astronomers and researchers interested i...

Exoplanet Giant Hot Jupiter Transiting Kepler Target Darkest Known
22 WASP-121b
WASP-121b

WASP-121b is an exoplanet classified as a giant, resembling a hot Jupiter. Its notable characteristic is its extremely short orbital period of approximately 1.27 days around its host star. This rapid transit and intense heat—with dayside temperatures exceeding 2400 K—have allowed scientists to detec...

23 WASP-107b
WASP-107b

WASP-107b is an exoplanet orbiting a K-type star. It’s a super-Neptune with a remarkably low density, making it one of the least dense planets discovered to date. Observations reveal significant helium escaping from its atmosphere. This planet is of interest to astronomers studying planetary formati...

Exoplanet Atmosphere Transiting Low Density Hot Saturn K Star
24 LHS 1140 b
LHS 1140 b

LHS 1140 b is an exoplanet approximately seven times Earth’s mass, orbiting the M-dwarf star LHS 1140. Its location within the habitable zone—the region around a star where liquid water could exist on a planet's surface—makes it significant for astronomical research. Scientists study this super-Eart...

25 TRAPPIST-1h

TRAPPIST-1h is an Earth-sized exoplanet orbiting the TRAPPIST-1 star. It’s notable as the most distant planet in this system and a key target for studying potentially habitable environments. Scientists investigate its atmospheric conditions and temperature to assess whether it could sustain liquid w...

26 WASP-189b
WASP-189b

WASP-189b is a giant exoplanet orbiting a young A-type star. It’s notable for being one of the hottest known exoplanets, reaching dayside temperatures around 3400 Kelvin. Its ultrashort orbital period makes it an ideal target for studying atmospheric processes and transiting planets. Astronomers and...

27 WASP-43b
WASP-43b

WASP-43b is a hot Jupiter exoplanet discovered in 2011 by the Wide Angle Search for Planets survey. It orbits an active K-type orange dwarf star located approximately 80 light-years from Earth. The planet is notable for its extremely close orbit, completing a full revolution around its host star in...

Exoplanet Hot Jupiter Transiting M Dwarf Tidal Lock Short Period
28 CoRoT-7b
CoRoT-7b

CoRoT-7b is an extrasolar planet discovered in 2009 by the French-led CoRoT space telescope, notable for being the first confirmed rocky exoplanet. It orbits a G-type main-sequence star in the constellation Monoceros at a very close distance. This proximity results in an extremely short orbital peri...

29 WASP-17b
WASP-17b

WASP-17b is a giant exoplanet announced in 2009 by the Wide Angle Search for Planets consortium. It holds the distinction of being the first exoplanet confirmed to orbit in a retrograde direction, moving in the opposite direction of its host star's rotation. Classified as a hot Jupiter, it is also n...

Exoplanet Giant Hot Jupiter Transiting Retrograde Orbit Low Density
30 WASP-127b
WASP-127b

WASP-127b is a transiting exoplanet classified as a "hot Saturn" due to its mass being roughly equivalent to Saturn's, despite being significantly larger in radius. Discovered in 2016, it orbits a G-type star and possesses a heavily inflated, low-density atmosphere. Spectroscopic observations have s...

Exoplanet Transiting Low Density Jwst Target G Star Hot Saturn
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