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Nouvelles
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Stellar Brief: 21. 10. 2026
TOI-3686 is the only known hot-Jupiter system in a true 2:1 orbital resonance: its outer planet takes almost exactly twice as long to circle its star as the inner planet. Read today's Stellar Brief

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Latest astronomy nouvelles

New observations give precise properties of 108 exoplanets and their stars
icon1. 6. 2023 (accepté)
iconÉtoiles | Exoplanètes | TESS
Image: New observations give precise properties of 108 exoplanets and their stars
85 stellar systems with 108 exoplanet candidates were analyzed with data from TESS, Gaia and Keck telescopes. ...
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A sub-Neptune exoplanet discovered in habitable zone of nearby star Gliese 555 (HN Lib)
icon31. 5. 2023 (accepté)
iconÉtoiles | Exoplanètes | Naines rouges | Exoplanètes habitable
Image: A sub-Neptune exoplanet discovered in habitable zone of nearby star Gliese 555 (HN Lib)
The planet Gliese 555 b could be rocky super-Earth and it could be habitable. Another candidate c was revealed by radial velocity data, if confirmed, it would most likely be an ice giant....
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Two exoplanets discovered orbiting a sun-like star TOI 1416
icon29. 5. 2023 (accepté)
iconÉtoiles | Exoplanètes | TESS
Image: Two exoplanets discovered orbiting a sun-like star TOI 1416
One of the planets is super-Earth with orbital period only 26 hours...
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Binary system HD 148937 could have originated as a triple star system and underwent a merger
icon1. 1. 1970 (accepté)
iconÉtoile
Image: Binary system HD 148937 could have originated as a triple star system and underwent a merger
This gave one of the stars significant magnetic field and created a cloud orbiting the system...
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Eccentric hot Jupiter found orbiting F star TOI 1408, it might experience severe gravitational distortions
icon1. 1. 1970 (accepté)
iconÉtoiles | Exoplanètes | TESS
Image: Eccentric hot Jupiter found orbiting F star TOI 1408, it might experience severe gravitational distortions
The star is bigger and heavier than the Sun. The planet resembles Jupiter, but it revolves around its star in only 4.4 days....
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Astronomers discovered another super-massive Neptune-sized planet
icon1. 1. 1970 (accepté)
iconÉtoiles | Exoplanète
Image: Astronomers discovered another super-massive Neptune-sized planet
Its radius is similar to Neptune, but it is over 4 times more massive....
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Exoplanet 8 UMi b survived engulfment by its star
icon1. 1. 1970 (accepté)
iconÉtoiles | Exoplanète
Image: Exoplanet 8 UMi b survived engulfment by its star
A Jupiter-like exoplanet around red giant star 8 Ursae Minoris apparently survived previous enlargement of its mother star. ...
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Hot Jupiter HAT-P-32 b has two giant tails created by helium escaping its atmosphere
icon1. 1. 1970 (accepté)
iconÉtoiles | Exoplanètes | Atmosphères planétaire
Image: Hot Jupiter HAT-P-32 b has two giant tails created by helium escaping its atmosphere
These tails are among the largest known structures associated with an exoplanet. ...
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2 exoplanets were hiding in the last data from Kepler telescope before it ran out of its fuel
icon1. 1. 1970 (accepté)
iconÉtoiles | Exoplanètes | Kepler
Image: 2 exoplanets were hiding in the last data from Kepler telescope before it ran out of its fuel
Exoplanets were found to orbit two red dwarfs K2-416 and K2-417. Astronomers also found evidence pointing to existence of a exoplanet orbiting a Sun-like star TIC 24805021....
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Exoplanètes nouvellement découvertes

 EK Chamaeleontis b 10 / 2026 2702.2 M⊕ 321.3 ly
HD 715 b 10 / 2026 201.9 M⊕ 542.8 ly
DENIS J1253-5709 b 10 / 2026 244.8 M⊕ 54.4 ly
TIC 219893931 b 09 / 2026 8.9 M⊕ 1319.5 ly
TOI-6417 b 09 / 2026 349.7 M⊕ 1903.9 ly
TOI-6443 b 09 / 2026 1605.4 M⊕ 2051.6 ly
TOI-7219 b 09 / 2026 661 M⊕ 1074.2 ly
TOI-4079 B b 09 / 2026 1646.8 M⊕ 1185.6 ly
HD 45652 b 09 / 2026 1557.7 M⊕ 113.9 ly
LSPM J0804+1116 b 09 / 2026 6.4 M⊕ 82.6 ly
HR 8799 f 09 / 2026 524.5 M⊕ 133.3 ly
61 Cygni A b 09 / 2026 2543.3 M⊕ 11.4 ly
TOI-5646 b 08 / 2026 45.9 M⊕ 1352.3 ly
TOI-4468 c 08 / 2026 11.1 M⊕ 1233.1 ly
TOI-4468 b 08 / 2026 170.1 M⊕ 1233.1 ly
Newly discovered exoplanets
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Latest scientific studies

Parcourez les dernières études scientifiques sur les étoiles et les exoplanètes de notre galaxie. Découvrez les dernières recherches en astrophysique et en astronomie stellaire.

 TIC 220432308
1129 ly
 +1 study icon Two Validated Planets and 179 Candidates From a TESS Faint Star Transit Search in the ULTRASAT Fields
today

TOI 431
106 ly
 +4 study icon Thermal Evolution of Lava Planets Across System Ages: Predictions for Hell of a Survey
today

L 115-21
41.9 ly
 study icon A sub-Earth-sized TESS planet candidate in the nearby M-dwarf binary GJ 774, most likely orbiting GJ 774 A (TIC 351339274)
today

TOI-3686
841 ly
 study icon TOI-3686: A Hot Jupiter and Sub-Neptune In A 2:1 Mean-Motion Resonance
today

TOI-270
73.3 ly
 study icon Ammonia-Hydrogen Phase Equilibria in Planetary Envelopes from First-Principles-Based Machine-Learning Molecular Dynamics
today

PDS 70
370 ly
 study icon Kinematic structure and age of a Scorpius--Centaurus subcomponent: implications for PDS 70 planetary system
yesterday

TIC 402710280
218 ly
 study icon A 36.34-day Sub-Neptune Candidate Transiting the Nearby K Dwarf TIC 402710280
yesterday

LTT 9779
264 ly
 +1 study icon Granulation in Color: The Chromatic Stellar Flicker of LTT-9779 and WASP-121
yesterday

HD 112485
5881 ly
 study icon Ensemble pulsational characteristics of eclipsing binaries containing β Cep stars observed by the TESS mission
19. 10. 2026

HD 100546
359 ly
 study icon An ALMA view on molecular complexity: water, methanol, and methyl formate in the HD 100546 and IRS 48 disks
19. 10. 2026
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