do not follow here
Stellar Catalog more icon
Zprávy
more icon

news icon
Latest astronomy zprávy

Zůstaňte v obraze s nejnovějšími astronomickými zprávami, objevy o hvězdách a exoplanetách a aktuálním výzkumu. Prozkoumejte čerstvé články ze světa astronomie.
Thick carbon dioxide atmosphere confirmed for exoplanet 55 Cancri e
icon20. 6. 2026
iconHvězdy | Exoplanety
Image: Thick carbon dioxide atmosphere confirmed for exoplanet 55 Cancri e
The 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 indicate that 55 Cancri e requires an atmosphere with a p...
Read article tag icon
Advertisement
Statistical analysis confirms TOI-7701 b as a sub-Saturn planet orbiting a subgiant star
icon20. 6. 2026
iconExoplanety | Hvězdy
Image: Statistical analysis confirms TOI-7701 b as a sub-Saturn planet orbiting a subgiant star
TOI-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 tag icon
Carbon isotope ratio measured in the atmosphere of planet Beta Pictoris b
icon19. 6. 2026
iconHvězdy | Exoplanety | Atmosféry plane
Image: Carbon isotope ratio measured in the atmosphere of planet Beta Pictoris b
Beta 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 tag icon
Atmosphere of the rocky exoplanet Gliese 486 b studied with infrared observations
icon17. 6. 2026
icon
Image: Atmosphere of the rocky exoplanet Gliese 486 b studied with infrared observations
Gliese 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 tag icon
Transit depth variations in young multi-planetary system HIP 67522 reveal stellar surface activity
icon17. 6. 2026
iconHvězdy | Exoplanety
Image: Transit depth variations in young multi-planetary system HIP 67522 reveal stellar surface activity
The 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 tag icon
Three massive planets discovered orbiting distant low luminosity red giant stars
icon12. 6. 2026
iconHvězdy | Exoplanety
Image: Three massive planets discovered orbiting distant low luminosity red giant stars
Researchers 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...
Read article tag icon
Two young giant planets discovered with the longest orbital periods for their class
icon6. 6. 2026
iconHvězdy | Exoplanety
Image: Two young giant planets discovered with the longest orbital periods for their class
Astronomers have identified two young, large-radius planets orbiting the F-type star HD 114082, marking them as the longest-period young transiting exoplanets currently known. These planets, designated b and c, were detected through a collaborative effort using data from multiple space and ground-based telescopes, including TESS, the Next-Generation Transit Survey (NGTS), the Characterising Exoplanet Satellite (CHEOPS), and the Antarctic Search f...
Read article tag icon
Three newly discovered hot Jupiters provide insights into late-stage planetary evolution
icon6. 6. 2026
iconHvězdy | Exoplanety | TESS | Horký Jupiter | Hvězdy podobné Slunci
Image: Three newly discovered hot Jupiters provide insights into late-stage planetary evolution
Understanding how giant planets evolve is essential for building a complete picture of planetary systems. While many exoplanets have been found, studying their changes over time requires observing systems in different stages of development. A recent discovery has added three new gas giant planets — known as hot Jupiters — orbiting stars that are approaching the end of their main sequence, a critical but less studied phase of planetary life. Th...
Read article tag icon
UV radiation from host stars complicates search for life on TRAPPIST-1 e
icon6. 6. 2026
iconHvězdy | Exoplanety | Atmosféry planet | Červení trpaslíci
Image: UV radiation from host stars complicates search for life on TRAPPIST-1 e
The search for life on distant planets often relies on identifying biosignatures — gases like oxygen or methane that are produced by biological processes. However, a new study highlights how the specific ultraviolet (UV) radiation from a host star can significantly influence a planet's atmospheric chemistry, potentially creating false-positive signals that might be mistaken for life. The research focused on the planet TRAPPIST-1 e, which orbits a...
Read article tag icon
Chemical differences in binary star pair suggest planetary engulfment
icon6. 6. 2026
iconHvězdy | Exoplanety
Image: Chemical differences in binary star pair suggest planetary engulfment
Stars born from the same cloud in a binary system are generally expected to have identical chemical compositions. However, some binary systems exhibit unexplained chemical differences, leading researchers to debate whether these anomalies originate from their birth environment or are the result of external events. This study examines the binary pair HD 129171 and HD 129209, which show significant differences in their abundances of iron, lithium, ...
Read article tag icon

Top article categories

Filtered articles by category.

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
Newly discovered exoplanets
tag icon

Advertisement