Stellar Brief: 20. 10. 2026
The planet-forming disk around HD 100546 contains an unexpectedly high amount of methyl formate: ALMA measured a methyl-formate-to-methanol ratio of about 2, hinting that active chemistry is reshaping the ingredients from which planets form.
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Latest astronomy zprávy
13. 9. 2024
Hvězdy | ExoplanetyOne 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....
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12. 9. 2024
Hvězdy | Exoplanety | TESS | KeplerThis newly found exoplanet TOI 4562 c has the longest orbital period of any planet discovered via transit timing variations....
11. 9. 2024
Hvězdy | ExoplanetyMore than 40-hour day could mean that the planet has a very thick atmosphere or a ring system...
9. 9. 2024
Hvězdy | ExoplanetyThe results suggest that sulfur in this disk may have a different isotopic composition than in our solar system....
6. 9. 2024
Hvězdy | ExoplanetyIt is a hot planet, bigger than Neptune with one of the highest luminosities in extreme ultraviolet for planets of this size. TOI-3568 b is 50% heavier than Neptune and its radius is 40% bigger. With an orbit lasting 4.4 days, it sits just outside the Neptunian desert, where the star evaporates the atmospheres of planets smaller than Jupiter and where only a few planets of this size have been found....
4. 9. 2024
Hvězdy | Exoplanety | TESSTOI-5688 is a binary star almost 750 light years away from the Sun. The newly discovered planet orbits the primary star every 2.9 days and has radius 10 times bigger than Earth which is similar to Saturn....
28. 8. 2024
Hvězdy | ExoplanetyThis is the most precise measurement yet of terrestrial exoplanet's thermal emission with JWST. Gliese 486 is a red dwarf only 26 light years from the Sun. The exoplanet Gliese 486 b orbits the star once every 36 hours. It is bigger, denser and hotter than Earth....
24. 8. 2024
Hvězdy | ExoplanetyThis could be caused by collisions between objects in the disk. While no definitive evidence of such collisions has been found yet, the study provides valuable insights into the dynamics of planetary systems and the processes that shape them....
22. 8. 2024
Hvězdy | Exoplanety | Lávové planetyIf this is the case, the lava circulation has a minimal impact on the planet's temperature distribution....
16. 8. 2024
Hvězdy | ExoplanetyNew observations also suggest that the planet's atmosphere might be escaping into space....
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Nově objevené exoplanety
| 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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