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Stellar Brief: 19. 10. 2026
The cold brown dwarf WISE 0855 has weather that looks strikingly planet-like: James Webb observations reveal patchy water clouds and changing atmospheric gases, including carbon monoxide and phosphine.
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Latest astronomy Новости
7. 7. 2026
Звезды | Экзопланеты | Коричневые карлики | ЭкзолуныEvidence for satellites orbiting the brown dwarf CD-35 2722 B has been identified using precise light measurements. While thousands of planets have been found orbiting stars, satellites around objects outside our solar system—known as exosatellites—have remained elusive and controversial. This study presents a strong detection of at least one, and possibly two, massive objects circling this brown dwarf, providing new data on how such systems form and evolve.
The research utilized radial veloc...
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6. 7. 2026Звезды | Экзопланеты | TESS | Оранжевый карликA newly identified planet, TOI-2195 A b, has been found orbiting an orange dwarf star. Classified as an inflated hot Neptune, this planet completes an orbit around its host star every 4.16 days. The discovery offers a new perspective on how such planets form, suggesting they may have once been much larger gas giants that lost a significant portion of their mass.
Researchers analyzed the system using the Rossiter-McLaughlin effect, which measur...
Read article 5. 7. 2026Звезды | Экзопланеты | Атмосферы планет | Белые карликиWhite dwarfs are the dense, cooling remnants of stars like our Sun. While it is known that some planets can survive the violent evolution of their host star into a white dwarf, little is known about the makeup of their atmospheres. Observations of the planet WD 1856 b now reveal an atmosphere containing hydrocarbons and aerosols, along with unexpectedly high temperatures, offering new insights into how these planets survive and evolve long after ...
Read article 5. 7. 2026Звезды | Экзопланеты | Gaia | TESS | Оранжевый карликThe Transiting Exoplanet Survey Satellite (TESS) has successfully identified its first gravitationally bound planet through a technique known as microlensing. Microlensing occurs when the gravity of a star and its orbiting planet acts like a magnifying glass, bending and brightening the light of a more distant background star as the system passes in front of it. The newly characterized planet, designated Gaia23bra b, orbits an orange dwarf star.
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Read article 5. 7. 2026Звезды | Экзопланеты | CHEOPS | Молодые звездные объектыThe young V1298 Tau planetary system, estimated to be between 10 and 30 million years old, provides a window into the early stages of planet formation. Recent observations focused on the three innermost planets of the system, refining measurements of their sizes and physical properties to better understand how young worlds develop their atmospheres and internal structures.
Data from the CHEOPS space telescope allowed for high-precision measure...
Read article 2. 7. 2026Звезды | Экзопланеты | TESSTwo giant planets, TOI-791 b and TOI-791 c, have been confirmed orbiting the F7-type star TOI-791. Both planets are similar in size to Jupiter, but they possess exceptionally low densities. They follow long-period orbits, taking approximately 139 days and 232 days respectively to complete a revolution around their host star. The planets are locked in a orbital relationship known as a 5:3 resonance, which causes detectable timing shifts as they pa...
Read article 2. 7. 2026Звезды | ЭкзопланетыThe ultra-hot Neptune-mass planet LTT 9779 b has been studied through the detection of its reflected starlight. Because planets are much fainter than their host stars, capturing the light they reflect is a significant technical challenge. By observing the system at high spectral resolution, investigators were able to isolate the faint signal of light bouncing off the planet, providing new information about its atmosphere.
The findings were gat...
Read article 2. 7. 2026Звезды | Экзопланеты | TESS | Оранжевый карликThe planetary system TOI-1533 consists of two planets orbiting an active orange dwarf star. Located in a compact arrangement, this system features an inner sub-Neptune planet and an outer, larger hot giant planet. Such systems, where a large gas-rich planet is accompanied by a smaller companion, are rare and provide insight into how planetary systems migrate and evolve over time.
The research reveals that both planets transit, or pass in front...
Read article 2. 7. 2026Звезды | Экзопланеты | Космический телескоп имени Джеймса Уэбба | Атмосферы планетThe temperate exo-Neptune TOI-1231 b serves as a vital benchmark for understanding planets smaller than Neptune. Because of its density, the planet is known to possess a deep, hydrogen-rich atmosphere. This study provides the first near-infrared transmission spectrum—a technique that analyzes how starlight filters through a planet's atmosphere—to determine its chemical makeup, offering a reference for similar worlds.
Researchers identified a s...
Read article 2. 7. 2026Звезды | ЭкзопланетыThe TOI-2134 planetary system contains two confirmed planets orbiting their host star. The inner planet is a mini-Neptune, a gas-rich world smaller than Neptune, while the outer planet is a temperate sub-Saturn. By combining new observations from the TESS space telescope with extensive ground-based velocity measurements, the composition and orbital paths of these planets have been precisely determined, revealing a complex system architecture.
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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 | |
| 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 | |
| TOI-4468 d | 08 / 2026 | 311 M⊕ | 1233.1 ly |
Newly discovered exoplanets
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