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Stellar Brief: 20. 10. 2026
Today’s standout finding changes the story of PDS 70: the young star is estimated to be 12 to 16 million years old, about three times older than previously thought. Alpha Centauri was the leading Stellarcatalog search query, with 1,537 impressions on October 19.
Read today's Stellar Brief
Latest astronomy noticias
20. 6. 2026
Exoplanetas | Telescopio espacial James Webb | Atmósferas planetariGliese 504 b is a planetary-mass companion orbiting a distant star. Previously too faint for detailed study from the ground, this object has now been analyzed using the James Webb Space Telescope. The data reveal a complex atmosphere filled with various molecules and evidence of salt clouds, providing a rare look at the chemistry of a cool, directly imaged world.
Spectroscopic analysis—the process of breaking down light into a spectrum to identify chemical fingerprints—detected signatures of ...
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20. 6. 2026Estrellas | ExoplaneWASP-121 b is an ultra-hot Jupiter, a gas giant planet orbiting extremely close to its host star. Because it is tidally locked, meaning the same side always faces its star, the planet experiences extreme temperature differences across its surface. New observations show that the planet's rotation creates detectable changes in the light it absorbs as it passes in front of its star, revealing uneven temperature and chemical distributions.
Data fr...
Read article 20. 6. 2026Estrellas | ExoplaneWarm Jupiters are gas giant planets with orbital periods between 10 and 200 days. Two such planets, TOI-2147 b and TOI-6019 b, have been identified and characterized. These planets exhibit high orbital eccentricity, meaning their paths around their host stars are more oval-shaped than circular. Their characteristics suggest they migrated to their current positions through processes involving high-eccentricity interactions.
The planetary nature...
Read article 20. 6. 2026Estrellas | ExoplaneTOI-837 b is a young, Saturn-sized planet located in the IC 2602 cluster, which is only 35 million years old. By studying the spin-orbit obliquity—the angle between the axis of the planet's orbit and the axis of the host star's rotation—researchers can determine how planets migrated to their current positions. This planet is the first younger than 100 million years observed to have a measurable misalignment, providing a rare look at planetary evo...
Read article 20. 6. 2026Estrellas | ExoplaneThe exoplanet 55 Cancri e is a hot, rocky world with a complex atmosphere that has been the subject of recent study. New research using advanced three-dimensional climate models shows that the planet likely possesses a thick, carbon dioxide-rich atmosphere. This conclusion relies on simulations that account for heat distribution across the planet, providing a more detailed look than previous one-dimensional models allowed.
The findings indicat...
Read article 20. 6. 2026Exoplanetas | EstreTOI-7701 b (TOI-7701.01) is a transiting object orbiting a bright F-type subgiant star. Initially identified as a candidate in a machine-learning survey, its true nature as a planet had remained uncertain until now. New statistical analysis has confirmed this object as a sub-Saturn, placing it at the critical boundary between giant planets and low-mass brown dwarfs, which are objects larger than planets but smaller than stars.
The confirmation...
Read article 19. 6. 2026Estrellas | Exoplanetas | Atmósferas planetariBeta Pictoris b is a young, giant planet located in a star system where astronomers can directly image its atmosphere. By studying the specific chemical makeup of this world, researchers can learn how it formed and how its composition compares to the raw materials found in the gas cloud that birthed the system. This study provides a detailed chemical profile of the planet, focusing on carbon isotopes and its overall atmospheric makeup.
The pla...
Read article 17. 6. 2026Gliese 486 b is a rocky exoplanet orbiting a Red dwarf star at a distance of about 26 light-years from the Solar System. Because it orbits very close to its host star, the planet is extremely hot, with surface temperatures reaching approximately 700 Kelvin. Observations from the James Webb Space Telescope were used to examine the light from the star as the planet passed in front of it to search for an atmosphere.
The research indicates that th...
Read article 17. 6. 2026Estrellas | ExoplaneThe HIP 67522 system, at approximately 17 million years old, is one of the youngest multi-planetary systems ever observed. This Sun-like star, located within the Scorpius-Centaurus OB association, hosts two Saturn-sized planets locked in a near 2:1 orbital resonance, meaning that for every orbit the outer planet completes, the inner planet completes roughly two. Scientists have conducted an analysis of photometric transit data—where the dimming o...
Read article 12. 6. 2026Estrellas | ExoplaneResearchers have identified three massive planets orbiting two low luminosity red giant stars, marking a significant addition to our understanding of planetary systems around evolved stars. These stars, which have expanded and cooled after exhausting the hydrogen fuel in their cores, are a unique environment for planet formation and survival. The study, part of a long-term campaign using the CORALIE spectrograph, focused on observing changes in t...
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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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