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 noticias
6. 11. 2024
Estrellas | ExoplaneSub-Neptune HD 119130 b was once believed to be ultra-dense. New data however show a much lower mass of about 9 Earths instead of previous estimated of 24.5 Earths, making it much less dense....
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23. 10. 2024
EstreThese collisions produce shocks and accelerating electrons, leading to varying X-ray intensity based on the stars' orbits....
8. 10. 2024
EstreFor instance, in Gliese 1183, star A has stronger X-ray and Hα emissions than B, despite similar rotation speeds....
2. 10. 2024
Estrellas | ExoplaneThis planet is smaller than Earth and orbits its star in just 3.15 days....
27. 9. 2024
Estrellas | ExoplaneThe star TOI-5005 is bright, making it ideal for further study. The ridge is densely populated with Neptune-sized exoplanets, unlike the desert and savanna regions, where only few were found....
18. 9. 2024
Estrellas | ExoplaneJames Webb detected quartz in the atmosphere of exoplanet HD 189733 b. Hot Jupiter HD 189733 b orbits a nearby star HD 189733 that is smaller than the Sun and lies only 64 light years away. The planet orbits close to the star with period only 2.2 days. The temperature in its atmosphere rises to scorching 1000 °C....
15. 9. 2024
Estrellas | ExoplaneThis process could explain the existence of LHS 3154 b....
15. 9. 2024
Estrellas | ExoplaneExoplanets Kepler 186 f and TOI 700 d might have magnetic fields sufficiently strong to protect their atmospheres and surfaces from stellar magnetic fields....
13. 9. 2024
Estrellas | ExoplaneOne of the stars, TOI-4914 b, is more inflated than what is supported by current theoretical models. Warm Jupiter TOI 4914 b has about 70 % of Jupiter's mass, but its radius is 15 % bigger. That gives it about half of Jupiter's density....
12. 9. 2024
Estrellas | Exoplanetas | TESS | KeplerThis newly found exoplanet TOI 4562 c has the longest orbital period of any planet discovered via transit timing variations....
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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 | |
| 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 |
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