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Stellar Brief: 19. 10. 2026
One of the coldest worlds near the Sun is showing surprisingly lively weather: JWST observations reveal patchy water clouds and changing atmospheric gases on the brown dwarf WISE 0855, which is only about 265 kelvin—colder than a winter’s day on Earth. Read today's Stellar Brief

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Latest astronomy news

Discovery of TOI 6038 A b - a dense sub-Saturn in the transition between the Neptunian ridge and savanna
icon7. 1. 2025
iconStars | TESS | Exoplane
Image: Discovery of TOI 6038 A b - a dense sub-Saturn in the transition between the Neptunian ridge and savanna
Its high-density core suggests tidal or disk migration to its current orbit....
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JWST observations of the disk around CX Tauri reveal unexpectedly bright CO₂ emission that dominates over H₂O
icon18. 12. 2024
iconStars | James Webb Space Telescope
Image: JWST observations of the disk around CX Tauri reveal unexpectedly bright CO₂ emission that dominates over H₂O
This may mean that CO₂-rich gas is replacing previously accreted H₂O-rich material, influenced by low accretion luminosity....
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Simulations of TRAPPIST-1 e, f, and g reveal how CO2 and H2O shape atmospheres during magma ocean stages
icon16. 12. 2024
iconStars | Exoplanets | Planetary atmospheres | Red dwarfs | Lava plane
Image: Simulations of TRAPPIST-1 e, f, and g reveal how CO2 and H2O shape atmospheres during magma ocean stages
CO2 slows water loss and extends mantle solidification, affecting habitability. TRAPPIST-1 e may end with a thick CO2 layer or desiccate like inner planets....
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Two Earth-sized planets and a similar-sized candidate found to orbit a nearby star HD 101581
icon13. 12. 2024
iconStar
Image: Two Earth-sized planets and a similar-sized candidate found to orbit a nearby star HD 101581
The two inner planets orbit near a 4:3 resonance....
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The OrCAS survey targets 26 sub-Neptune systems to refine their masses, radii, and densities
icon27. 11. 2024
iconStars | Exoplane
Image: The OrCAS survey targets 26 sub-Neptune systems to refine their masses, radii, and densities
Aiming to uncover their atmospheric compositions and formation histories....
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JWST observations of the nearby cool Y-dwarf WISE 0855-0714 reveal deuterated methane
icon25. 11. 2024
iconStars | Brown dwarfs | Young Stellar Obje
Image: JWST observations of the nearby cool Y-dwarf WISE 0855-0714 reveal deuterated methane
Phosphine was also detected at a part-per-billion level, hinting at complex chemistry....
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A powerful stellar prominence eruption was observed on red dwarf LAMOST J0444+2356
icon19. 11. 2024
iconStar
Image: A powerful stellar prominence eruption was observed on red dwarf LAMOST J0444+2356
The prominence mass is the highest recorded for any star relative to its size....
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Second brown dwarf has been found in the LP 261-75 system
icon18. 11. 2024
iconStar
Image: Second brown dwarf has been found in the LP 261-75 system
Its unusually small radius hints at a unique origin, unlike other young brown dwarfs....
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Discovery of NGTS-33 b: a young super-Jupiter orbiting a fast-spinning A-type star every 2.83 days
icon15. 11. 2024
iconStars | Exoplane
Image: Discovery of NGTS-33 b: a young super-Jupiter orbiting a fast-spinning A-type star every 2.83 days
With a mass of 3.6 Jupiters and low density, it’s an ideal JWST target for atmospheric study....
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Observations hint at a potential close companion to known ultra-hot Jupiter TOI-2109 b
icon13. 11. 2024
iconStars | Exoplane
Image: Observations hint at a potential close companion to known ultra-hot Jupiter TOI-2109 b
If confirmed, the system may join the rare few with exoplanets near hot Jupiters....
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Recently discovered exoplanets

 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
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Latest scientific studies

Browse the latest scientific studies on stars and exoplanets in our galaxy. Stellar Catalog provides access to scientific data from astrophysics and stellar or planetary astronomy. It's a resource for anyone interested in the newest discoveries about what lies beyond our solar system.

 HD 112485
5881 ly
 study icon Ensemble pulsational characteristics of eclipsing binaries containing β Cep stars observed by the TESS mission
today

HD 100546
359 ly
 study icon An ALMA view on molecular complexity: water, methanol, and methyl formate in the HD 100546 and IRS 48 disks
today

HD 120678
5829 ly
 study icon HD 120678: a classical Be star with a tilting heartbeat disk
yesterday

33 G. Librae
19.2 ly
 +1 study icon EPRV Asteroseismology of the K dwarfs GJ 570 A and GJ 783 A with ESPRESSO. Empirical mode-amplitude scaling in tension with 3D convection simulations
yesterday

WISE 0855-0714
7.3 ly
 study icon Water Cloud and Chemical Modulations in the Coldest Brown Dwarf
17. 10. 2026

TOI-5322
1560 ly
 +1 study icon A Sample of Thick-Disk Stars Hosting Hot Jupiters
17. 10. 2026

WD J1330+6435
282 ly
 study icon Any colour you like: the diverse chromaticities of white dwarfs
17. 10. 2026

WASP-33
378 ly
 study icon Identifying deformed exoplanets with JWST and Ariel: A target selection metric for phase curve observations
16. 10. 2026

WASP 94
687 ly
 study icon A New Method for Constraining 3D Exoplanet Atmospheres: Application to WASP-94A b's Panchromatic Spectrum
16. 10. 2026

TOI-3118
1410 ly
 study icon A Sample of Thick-Disk Stars Hosting Hot Jupiters
16. 10. 2026
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