sterne
exoplaneten
Nachricht
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.
Read today's Stellar Brief
Latest astronomy nachricht
29. 9. 2026
Sterne | Exoplaneten | Hubble | Orangefarbener ZwerThe rocky exoplanet TOI-2431 b, which orbits its host star in just 5.4 hours, has been studied using the Hubble Space Telescope to analyze its thermal characteristics. This planet is characterized by an extreme surface environment where day-night heat redistribution appears highly inefficient, preventing the transport of heat from the dayside to the nightside. This finding offers new insights into the nature of ultra-short-period planets.
Researchers observed the planet’s secondary eclipse—th...
Read article 
Advertisement
26. 9. 2026Sterne | Exoplaneten | Junge SternobjekteThe infant star V1298 Tau, only about 20 million years old, hosts a system of four transiting planets. Determining the masses of these young worlds is essential for understanding how planetary systems form and evolve. Recent observations have provided updated mass constraints for these planets by monitoring the star over four and a half years to detect the subtle gravitational wobbles they induce on their host.
Researchers analyzed over 380 hi...
Read article 25. 9. 2026Sterne | Exoplaneten | PlanetenentstehuThe Beta Pictoris debris disk—a massive ring of dust and rocky material surrounding a young star—contains a distinct structure called the Cat's Tail. By combining years of observations from the Hubble Space Telescope, researchers have captured the first visible and near-infrared light from this feature, allowing for a detailed study of the materials and origins of this unique dust formation.
Data gathered between 2012 and 2025 enabled the iden...
Read article 25. 9. 2026Sterne | ExoplaneteBeta Pictoris is a young, well-studied star system already known to host planets and a vast outer debris disk. New observations have provided a clearer look at the hot, fine dust orbiting very close to the star, known as exozodiacal dust. This material represents the fine, pulverized remains of collisions within the system and offers clues into the complex environment where planets and comets interact.
Using the MATISSE instrument at the Very ...
Read article 25. 9. 2026Sterne | Braune Zwerge | James-Webb-Weltraumteleskop | GaiThe brown dwarf WISEA J155349.96+693355.2 is a low-temperature, metal-poor object identified as the first of its kind to be associated with the Gaia-Enceladus substructure. This group of stars was once part of a separate dwarf galaxy that collided with our Milky Way billions of years ago. Observations have confirmed that this brown dwarf follows a distinct, highly eccentric orbit consistent with objects that originated outside the Milky Way and w...
Read article 25. 9. 2026Sterne | Exoplaneten | | PlanetenentstehuThe protoplanetary disk—a rotating ring of gas and dust forming planets—surrounding the star HD 163296 has been analyzed to search for signs of Axion-like particles. These theoretical particles are proposed candidates for ultralight dark matter, which could interact with light by causing birefringence, a phenomenon that rotates the polarization angle of light as it travels through space.
By examining six sets of archival near-infrared polarize...
Read article 24. 9. 2026Sterne | Exoplaneten | James-Webb-Weltraumteleskop | TESS | Heißer JupiterTOI-2109 b is an extreme gas giant known as an ultra-hot Jupiter, orbiting its host star in less than 17 hours. It possesses a mass over five times that of Jupiter and is currently recognized as having the fastest predicted orbital decay of any known giant planet. Recent data from the James Webb Space Telescope and the Hubble Space Telescope have provided evidence of complex gravitational influences affecting the planet's path as it orbits its st...
Read article 23. 9. 2026Sterne | James-Webb-Weltraumteleskop | PlanetenentstehuThe innermost regions of the protoplanetary disk surrounding the very-low-mass star 2MASS J16053215-1933159 have been characterized using observations from the James Webb Space Telescope. By comparing data collected in 2022 and 2024, researchers observed significant changes in the amount of light emitted by carbon monoxide gas and other material, suggesting that this small star behaves like a scaled-down version of larger, younger stars known as ...
Read article 22. 9. 2026Sterne | Exoplaneten | Rote Zwerge | PlanetenentstehuGliese 3090 b is a sub-Neptune planet orbiting an inner position within a multi-planet system around a Red dwarf star. Recent observations reveal that this planet moves in a retrograde orbit, meaning it travels in the opposite direction to the rotation of its host star. This configuration is highly unusual for small planets orbiting Red dwarf stars, providing new information about how planetary systems develop and migrate over time.
To determi...
Read article 22. 9. 2026Sterne | Exoplaneten | PlanetenentstehuThe formation of moons around giant planets depends on how these planets pull gas and dust from the surrounding disk. By modeling the young star PDS 70, researchers have investigated how material flows toward the planet PDS 70 c. The results show that large planets act as a filter, significantly changing the amount and size of dust that can actually reach the planet's own miniature disk, known as a circumplanetary disk.
To understand this proc...
Read article Top article categories
Filtered articles by category.
Neu entdeckte Exoplaneten
| 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
Latest scientific studies
Durchsuchen Sie die neuesten wissenschaftlichen Studien zu Sternen und Exoplaneten in unserer Galaxie. Entdecken Sie die neuesten Forschungsergebnisse zur Astrophysik und Sternastronomie.
Ältere Veröffentlichungen