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Stellar Brief: 20. 10. 2026
The planet-forming disk around HD 100546 contains an unexpectedly high amount of methyl formate: ALMA measured a methyl-formate-to-methanol ratio of about 2, hinting that active chemistry is reshaping the ingredients from which planets form. Read today's Stellar Brief

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Latest astronomy zprávy

New warm-Neptune TOI 5076 b confirmed with a mass about 16 times Earth's and a radius slightly over 3 times Earth's
icon30. 5. 2024
iconHvězdy | Exoplanety | TESS
Image: New warm-Neptune TOI 5076 b confirmed with a mass about 16 times Earth
Its density suggests a significant amount of volatile materials surrounding a rocky core....
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Tiny wobbles of a bright star HD 73344 have revealed the mass of a nearby sub-Neptune exoplanet
icon27. 5. 2024 (přijato)
iconHvězdy | Exoplanety
Image: Tiny wobbles of a bright star HD 73344 have revealed the mass of a nearby sub-Neptune exoplanet
Additionally, another signal hints at the presence of a previously undetected planet orbiting farther from the star. HD 73344 is an F-type star approximately 115 light-years away. At roughly 20% larger than our Sun, it hosts a sub-Neptune exoplanet with a density similar to Saturns. The possible second planet has been detected with a minimum mass around one-third that of Jupiter...
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A mini-Neptune discovered in the habitable zone of star TOI 4633
icon29. 4. 2024 (přijato)
iconHvězdy | Exoplanety
Image: A mini-Neptune discovered in the habitable zone of star TOI 4633
Also another non-transiting planet candidate lurks closer to the star...
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The famous planet thought to orbit 40 Eridani A does not exist. Its signal can be explained with stellar activity
icon26. 4. 2024 (přijato)
iconHvězdy | Exoplanety
Image: The famous planet thought to orbit 40 Eridani A does not exist. Its signal can be explained with stellar activity
In the Star Trek universe the planet Vulcan (also NiVar) orbits one of the three stars in 40 Eridani system that lies 40 light years from the Sun....
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Planet confirmed orbiting one of three red dwarfs in the nearby system TOI 4336
icon19. 4. 2024 (přijato)
iconHvězdy | Exoplanety
Image: Planet confirmed orbiting one of three red dwarfs in the nearby system TOI 4336
It is bigger than Earth and orbits near the habitable zone of its star....
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Tidal pull from close orbiting giant planet creates turbulence within the WASP-18
icon10. 4. 2024 (přijato)
iconHvězdy | Exoplanety
Image: Tidal pull from close orbiting giant planet creates turbulence within the WASP-18
This turbulence might suppress the formation of sunspots, explaining the low stellar activity....
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Observations suggest the atmosphere of HAT-P-67 b might be evaporating due to a detected helium signal
icon4. 4. 2024 (přijato)
iconHvězdy | Exoplanety
Image: Observations suggest the atmosphere of HAT-P-67 b might be evaporating due to a detected helium signal
HAT-P-67 b is one of the lowest-density gas giants....
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New Hubble observations rule out stellar interference in a previously observed water signal
icon29. 3. 2024 (přijato)
iconHvězdy | Exoplanety
Image: New Hubble observations rule out stellar interference in a previously observed water signal
Previous data hinted at presence of water in the atmosphere of ...
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Atmosphere of hot Jupiter WASP 76 b contains water and carbon monoxide
icon28. 3. 2024 (přijato)
iconHvězdy | Exoplanety
Image: Atmosphere of hot Jupiter WASP 76 b contains water and carbon monoxide
Observed variations also hint a complex weather system...
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TESS telescope found a signal that might be linked to the interaction between WASP-167 b and its star
icon28. 3. 2024 (přijato)
iconHvězdy | Exoplanety | TESS
Image: TESS telescope found a signal that might be linked to the interaction between WASP-167 b and its star
The exoplanets orbits very close and temperature in its atmosphere rises to 2 500 °C...
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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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