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23. 8. 2026
Estrellas | ExoplaneNumerical simulations have evaluated whether planets in the 70 Ophiuchi, 36 Ophiuchi, and Gamma Leonis binary systems can remain stable in their habitable zones. The habitable zone is the range of distances from a star where conditions might allow liquid water to exist on a planet's surface. While Gamma Leonis is unlikely to support stable planets due to its extreme orbital dynamics, the 70 Ophiuchi and 36 Ophiuchi systems show promising conditions for long-term planetary stability.
Researche...
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23. 8. 2026Estrellas | Exoplanetas | Atmósferas planetariUnderstanding how planets form requires detailed knowledge of the chemical makeup of their host stars. This study provides a comprehensive analysis of the host stars AF Leporis A and Epsilon Indi A, which are known to harbor cold, directly imaged planets. By examining the light from these stars with high-resolution spectroscopy—a technique that breaks down starlight into its component colors to identify chemical elements—the composition of their ...
Read article 23. 8. 2026Estrellas | Exoplanetas | Telescopio espacial James WebbThe exoplanet HD 80606b is a massive gas giant known for its extreme eccentricity, meaning its path around its host star is highly elongated rather than circular. Because it transits and is eclipsed by its host star, the G5V star HD 80606, it serves as a unique laboratory for studying planetary dynamics. New high-precision data from the James Webb Space Telescope, combined with 25 years of previous radial velocity measurements, were used to exami...
Read article 23. 8. 2026Estrellas | Exoplanetas | SupertierrThe internal makeup of the super-Earth Gliese 486b has been estimated by analyzing the chemical properties of its host star. Because rocky planets typically inherit their chemical composition from the materials that formed their parent stars, understanding the composition of a star provides a window into the building blocks of its orbiting planets. This research provides a new framework that links stellar chemical data to the internal structure a...
Read article 23. 8. 2026Estrellas | Exoplanetas | Telescopio espacial James WebbThe Trappist-1 system, a small star orbited by seven Earth-sized planets, has been a major target for the James Webb Space Telescope. While the inner planets have been studied directly, the potential to detect thermal emission—the heat energy radiated by a planet—from the outer planets remains a significant challenge due to interference from the host star itself.
This analysis compiled existing observations from five separate projects to see i...
Read article 23. 8. 2026Estrellas | Exoplanetas | Telescopio espacial James WebbRecent observations of the temperate planet LHS 1140 b have provided new insights into its atmosphere. While previous data suggested the presence of helium escaping from the planet, detailed analysis of four planetary transits—the period when a planet passes in front of its star—reveals no consistent evidence of such activity, indicating that earlier detections may have been influenced by stellar changes or instrumental factors.
Researchers ex...
Read article 23. 8. 2026Estrellas | Exoplanetas | Telescopio espacial James WebbThe warm Saturn-sized exoplanet WASP-69 b exhibits significant atmospheric differences between its morning and evening sides. New observations reveal an asymmetric distribution of aerosols—tiny particles suspended in the atmosphere—which create distinct cloud conditions across the planet. This discovery helps explain how planets at temperatures near 1,000 Kelvin manage the cycle of cloud formation and evaporation as material travels around the gl...
Read article 13. 8. 2026Estrellas | ExoplaneThe thermal characteristics of 55 Cancri e, an ultra-short period rocky planet, are better understood by accounting for the planet’s three-dimensional geometry and its rotation. By calculating how sunlight hits the planet at various angles throughout its day, it is possible to model the temperature distribution across its surface more accurately. This approach clarifies why the planet exhibits a specific thermal imprint observed by telescope meas...
Read article 13. 8. 2026Estrellas | Exoplanetas | Atmósferas planetariAF Lep b is a young gas giant planet with a mass roughly three to four times that of Jupiter, orbiting its host star at a distance of approximately 9 astronomical units. Recent observations using the James Webb Space Telescope have allowed for a detailed look at the chemical composition of its atmosphere, providing new insights into how this massive planet formed and grew during the early stages of its solar system.
The research team analyzed ...
Read article 13. 8. 2026Estrellas | Exoplanetas | Formación planetariThe young planetary systems PDS 70 and SR 12 provide new insights into how giant planets and their moons form. By studying the dust disks surrounding the planets PDS 70 c and SR 12 c, it is clear that these distant worlds share significant similarities with the development of Jupiter and Saturn. These observations help explain how gas and dust accumulate to form planets and smaller satellites in the early stages of a star system's life.
The pl...
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Exoplanetas recién descubiertos
| 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 |
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