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Stellar Brief: 20. 10. 2026
The enigmatic white dwarf WD J1330+6435 is currently capturing intense astronomical attention, appearing as a top search query for those exploring the remnants of sun-like stars. While most white dwarfs appear characteristically pale, recent research confirms that the complex chemistry of these dense atmospheres can produce stunning, unexpected hues—ranging from vivid yellow and green to delicate shades of pink and purple. Read today's Stellar Brief

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Latest astronomy zprávy

Three extremely metal-poor RR Lyrae stars were analyzed using high-resolution spectra
icon14. 1. 2025
iconHvězdy
Image: Three extremely metal-poor RR Lyrae stars were analyzed using high-resolution spectra
Their movement suggests mixed origins - in galactic disk and halo....
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A disintegrating rocky planet discovered orbiting a bright K-dwarf BD+05 4868 A
icon10. 1. 2025
iconHvězdy | Exoplanety
Image: A disintegrating rocky planet discovered orbiting a bright K-dwarf BD+05 4868 A
When transiting in front of the star, comet-like tails both leading and trailing are visible, indicating large dust grains and rapid mass loss...
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Discovery of TOI 6038 A b - a dense sub-Saturn in the transition between the Neptunian ridge and savanna
icon7. 1. 2025
iconHvězdy | TESS | Exoplanety
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
iconHvězdy | Vesmírný dalekohled Jamese Webb
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
iconHvězdy | Exoplanety | Atmosféry planet | Červení trpaslíci | Lávové planety
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
iconHvězdy
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
iconHvězdy | Exoplanety
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
iconHvězdy | Hnědí trpaslíci | Mladé hvězdné objekty
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
iconHvězdy
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
iconHvězdy
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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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
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