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Stellar Brief: 22. 10. 2026
A young, planet-hosting star called V1298 Tauri is showing how fiercely active infant planetary systems can be: radio emissions appeared in 90 percent of monitoring visits, while its X-ray brightness also changed and showed a stellar flare.
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Latest astronomy Новости
9. 9. 2026
Звезды | ЭкзопланетыThe Nu Octantis system consists of a compact binary star pair and a planet in a retrograde orbit, meaning the planet moves in the opposite direction to the rotation of the stars. This planet orbits near the limit of gravitational stability, making its long-term presence a complex dynamical challenge. By modeling various potential orbital configurations, researchers have sought to determine how this world maintains a stable path despite the intense gravitational influence of the two stars.
To ...
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5. 9. 2026Звезды | Экзопланеты | Атмосферы планет | Лавовые планетыTOI-561 b is a rocky, ultrashort-period exoplanet that orbits its star extremely quickly, resulting in intense irradiation. Recent data suggests this world may possess a thick, secondary atmosphere hovering above a global, molten surface, or magma ocean. Unlike the primary atmospheres of giant planets, which are captured from gas clouds, a secondary atmosphere is generated by gases released from the planet's interior over time.
Researchers use...
Read article 31. 8. 2026Звезды | Экзопланеты | Горячий юпитерFour hot-Jupiter planets orbiting within binary star systems have been characterized for their orbital alignment. These massive gas planets, known as KELT-2 Ab, KELT-3 Ab, TOI-1333 Ab, and TOI-1789 Ab, were studied to understand how their orbits interact with their host stars. The study focused on whether these planets orbit in line with the rotation of their parent stars, providing insight into the complex dynamical processes occurring within mu...
Read article 31. 8. 2026Звезды | Экзопланеты | Атмосферы планетThe ultra-hot Jupiter WASP-12b is leaking gas into space, forming a structure that does not follow the planet's orbit. By observing the planet as it passes in front of its host star, researchers detected hydrogen-alpha light—a specific signature of hot hydrogen gas—that reveals how the atmosphere escapes the planet's gravitational control and shears into long tidal tails.
Using high-resolution transit spectroscopy, which measures how light is ...
Read article 31. 8. 2026Звезды | Экзопланеты | TESS | Гиганты | СубгигантыA rare, ultra-hot super Neptune planet named TOI-5646b has been confirmed orbiting the subgiant star TOI-5646. This planet resides within the Neptune desert, a region where such planets are seldom found due to intense stellar radiation. TOI-5646 is notable for being the largest star discovered to date that hosts a Neptune-sized planet in this harsh environment, offering new insights into how planetary systems evolve and survive extreme conditions...
Read article 31. 8. 2026Звезды | Экзопланеты | Космический телескоп имени Джеймса Уэбба | Атмосферы планетRecent analysis of data from the James Webb Space Telescope, the Hubble Space Telescope, and ground-based observations suggests that the exoplanet Gliese 1132 b is likely a bare rocky world. By examining the light filtering through the planet’s edges as it passes in front of its host star, the data reveals a featureless transmission spectrum, meaning no clear chemical fingerprints of an atmosphere were detected.
The study compared various mode...
Read article 31. 8. 2026Звезды | Экзопланеты | KeplerThe star Kepler-50 hosts two known planets that pass in front of their host star from our perspective, an event known as a transit. These two planets are locked in a near-resonant relationship, meaning their orbital periods are mathematically related. Analysis of their transit times reveals small, irregular timing variations, which indicate the presence of a third, non-transiting planet tugging on them through gravity.
Researchers examined dat...
Read article 31. 8. 2026Звезды | Экзопланеты | TESS | Горячий юпитерA new planetary system has been identified orbiting the star TOI-4468, featuring a hot Jupiter and a nearby outer sub-Neptune. This system is unique because it includes a close outer companion to a hot Jupiter without any inner planets, a configuration not typically seen in the current census of known worlds. These findings provide new insights into how these massive, short-period planets form and evolve over time.
The research confirmed the p...
Read article 31. 8. 2026Звезды | ЭкзопланетыTRAPPIST-1 is a small, cool star known for hosting several Earth-sized planets. Because very low-mass stars do not change much over time, they preserve the chemical signature of the cloud of gas and dust from which they formed. Understanding the chemical makeup of such a star provides essential clues about the building materials available to its planets during their formation process.
The chemical composition was determined by analyzing high-r...
Read article 31. 8. 2026Звезды | Экзопланеты | Атмосферы планетThe young exoplanet V1298 Tauri b is a warm sub-Neptune orbiting a very young orange dwarf star. Recent observations from the James Webb Space Telescope have revealed an atmospheric mystery: the planet contains far less methane than expected, while showing surprising levels of carbon dioxide. This phenomenon, known as the missing methane problem, has been observed in several cool planets, where standard chemical models fail to predict the observe...
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Недавно обнаруженные экзопланеты
| 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 | |
| L 115-21 b | 10 / 2026 | 0.4 M⊕ | 41.9 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 |
Newly discovered exoplanets
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