Stellar catalog: Discover the nearby universe

Domů
česko
Malá Strana
Stellar catalog: Discover the nearby universe

Database of nearby stars and planets in Milky Way. Current news from astronomy and stellar research.

28/07/2025

James Webb telescope reveals disequilibrium chemistry in the cold Y brown dwarf WISE 1738+2732. CO and CO₂ detected alongside CH₄, H₂O, and NH₃ hint at dynamic, planet-like atmospheres in 400 K substellar objects

📄 https://www.stellarcatalog.com/study.php?studyID=101698

27/07/2025

Exoplanet 🪐Ross 176 b is a hot planet with low density, consistent with a water-world. It is a strong candidate for future atmospheric studies
📄 https://www.stellarcatalog.com/study.php?studyID=101704

23/07/2025

🪐TOI-201 c, a massive planet on a 7.7-year orbit, was first revealed by timing variations of transits of its inner sibling TOI-201 b. Later transit confirmed it—one of the longest-period transiting giant planets known
📄 https://www.stellarcatalog.com/study.php?studyID=101699

05/07/2025

Super-Earth 🪐L 98-59 d may be neither a gas dwarf nor a water world—its low density points to a volatile-rich magma ocean planet with an SO₂-H₂ atmosphere
📄 https://www.stellarcatalog.com/study.php?studyID=101681

02/07/2025

JWST reveals hot daysides and weak or absent atmospheres on rocky exoplanets. No definitive detections of atmospheres yet, but the precision is improving
https://www.stellarcatalog.com/study.php?studyID=101678

27/06/2025

Frequent microflares from small but active star ⭐️TRAPPIST-1 create strong ultraviolet noise, that hides signs of escaping atmospheres. No clear atmospheres were detected around any of its seven planets with Hubble telescope
📄 https://www.stellarcatalog.com/study.php?studyID=101670

16/06/2025

Signals where transits and star spots cross each other reveal misaligned orbit of exoplanet 🪐TOI-3884 b. This Neptune-mass planet orbits a tilted red dwarf with a long-lived polar starspot, persisting for at least 7 years
📄 https://www.stellarcatalog.com/study.php?studyID=101662

14/06/2025

A radio signal was detected from star system⭐️HD 189733 consisting of two stars and one known exoplanet. Properties of the signal suggest cyclotron maser emission, possibly from 🪐HD 189733 b or stellar activity
📄 https://www.stellarcatalog.com/study.php?studyID=101657

12/06/2025

⭐️TOI-1117 hosts 3 sub-Neptune expolanets. One of them lies in both the Neptunian Desert and Radius Valley - rare orbital positions for planets of this size
📄 https://www.stellarcatalog.com/study.php?studyID=101658

05/06/2025

🪐LP 791-18 d, an Earth-size planet experiencing significant tidal heating, likely has intense volcanic activity. Its atmosphere's stability is strongly influenced by the interior's oxidation state, with highly oxidized scenarios being more stable
📄 https://www.stellarcatalog.com/study.php?studyID=101647

03/06/2025

The atmosphere of ultra-hot Jupiter🪐WASP-178 b modeled with new precision reveals complex temperature structure. The advanced modeling shows excellent agreement with NUV observations, contrasting previous results
📄 https://www.stellarcatalog.com/study.php?studyID=101644

03/06/2025

Abundant carbon, silicon, and oxygen in 🪐WASP-121 b’s atmosphere suggest formation with rock debris and dynamic chemistry
📄 https://www.stellarcatalog.com/study.php?studyID=101643

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Malá Strana

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https://www.stellarcatalog.com/

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