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Stellar Brief: 22. 10. 2026
A young, planet-hosting star called V1298 Tauri is showing how fiercely active infant planetary systems can be: radio emissions appeared in 90 percent of monitoring visits, while its X-ray brightness also changed and showed a stellar flare. Read today's Stellar Brief

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Latest astronomy noticias

Habitable zone stability probed within the HD 141399 system with 4 giant exoplanets
icon2. 10. 2023 (aceptado)
iconEstre
Image: Habitable zone stability probed within the HD 141399 system with 4 giant exoplanets
K-dwarf star HD 141399 is about 120 light years away and there are 4 known exoplanets orbiting it. All of them are gas giants similar to Jupiter and one is suspected to reside in the habitable zone of the star....
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Two Saturn-like exoplanets orbit a Sun-like star TOI 199
icon26. 9. 2023 (aceptado)
iconEstrellas | Exoplanetas | TESS
Image: Two Saturn-like exoplanets orbit a Sun-like star TOI 199
The planet closer to the star is the first warm exo-Saturn with a precisely determined mass and radius...
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New study shows a brown dwarf HD 106906 B that formed like a star, rather than planet
icon18. 9. 2023 (aceptado)
iconEstre
Image: New study shows a brown dwarf HD 106906 B that formed like a star, rather than planet
Astronomers have studied the atmosphere of a newly discovered planet-mass companion to a young star. They find that its carbon-to-oxygen ratio is consistent with it forming like a star, rather than like a planet....
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Discovery of remarkably low density exoplanet TOI 1420 b
icon18. 9. 2023 (aceptado)
iconEstrellas | TESS | Exoplane
Image: Discovery of remarkably low density exoplanet TOI 1420 b
Astronomers led by Stephanie Yoshida announced discovery of a new super-puff exoplanet. It orbits a Sun-like star TOI 1420 once in every 7 days. With 12 Earth radii and 25 Earth masses it has only 1 % of Earths density....
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Sub-Neptune and super-Earth discovered orbiting a star HIP 113103 150 light years away
icon8. 9. 2023 (aceptado)
iconEstrellas | TESS | CHEOPS | Exoplane
Image: Sub-Neptune and super-Earth discovered orbiting a star HIP 113103 150 light years away
Average density of the super-Earth HIP 113103 b is very similar to that of Earth, but the planet is 6 times heavier....
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Very Large Telescope reveals a compact multi-planetary system HIP 29442 (TOI 469)
icon25. 8. 2023 (aceptado)
iconEstrellas | Exoplanetas | TESS
Image: Very Large Telescope reveals a compact multi-planetary system HIP 29442 (TOI 469)
Radial velocity measurement shows clear signs of three exoplanets in the system. All bigger than Earth....
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Astronomers observe TU Tauri B - a possible proto-barium giant
icon21. 8. 2023 (aceptado)
iconEstre
Image: Astronomers observe TU Tauri B - a possible proto-barium giant
The star is part of a binary system almost 4 thousand light years away....
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New super-Earth discovered orbiting a red dwarf TOI 1680 121 light years away
icon11. 7. 2023 (aceptado)
iconEstrellas | TESS | Exoplane
Image: New super-Earth discovered orbiting a red dwarf TOI 1680 121 light years away
The exoplanet TOI 1680 b is 3 times heavier than Earth and its radius is 47 % bigger....
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Helium confirmed in atmospheres of exoplanets HAT-P-11 b, HD189733 b, and WASP-69 b
icon10. 7. 2023 (aceptado)
iconEstrellas | Exoplanetas | Atmósferas planetari
Image: Helium confirmed in atmospheres of exoplanets HAT-P-11 b, HD189733 b, and WASP-69 b
Upper limits set for 8 more planets using Canada France Hawaii Telescope....
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icon27. 6. 2023 (aceptado)
iconEstrellas | Exoplane
Image:
Study of magnetic environment around nearby calm red dwarf....
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Exoplanetas recién descubiertos

 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
L 115-21 b 10 / 2026 0.4 M⊕ 41.9 ly
TIC 219893931 b 09 / 2026 8.9 M⊕ 1319.5 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
Newly discovered exoplanets
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Latest scientific studies

Explore los últimos estudios científicos sobre estrellas y exoplanetas en nuestra galaxia. Descubra las últimas investigaciones sobre astrofísica y astronomía estelar.

 V1298 Tauri
352 ly
 study icon Radio and high-energy variable emission from a multi-wavelength follow-up of the infant planet-hosting star V1298 Tau
yesterday

TYC 5709-354-1
437 ly
 study icon Predictions for an unseen third planet in the WISPIT 2 system
yesterday

TIC 220432308
1129 ly
 +1 study icon Two Validated Planets and 179 Candidates From a TESS Faint Star Transit Search in the ULTRASAT Fields
21. 10. 2026

TOI 431
106 ly
 +4 study icon Thermal Evolution of Lava Planets Across System Ages: Predictions for Hell of a Survey
21. 10. 2026

L 115-21
41.9 ly
 study icon A sub-Earth-sized TESS planet candidate in the nearby M-dwarf binary GJ 774, most likely orbiting GJ 774 A (TIC 351339274)
21. 10. 2026

TOI-3686
841 ly
 study icon TOI-3686: A Hot Jupiter and Sub-Neptune In A 2:1 Mean-Motion Resonance
21. 10. 2026

TOI-270
73.3 ly
 study icon Ammonia-Hydrogen Phase Equilibria in Planetary Envelopes from First-Principles-Based Machine-Learning Molecular Dynamics
21. 10. 2026

PDS 70
370 ly
 study icon Kinematic structure and age of a Scorpius--Centaurus subcomponent: implications for PDS 70 planetary system
20. 10. 2026

TIC 402710280
218 ly
 study icon A 36.34-day Sub-Neptune Candidate Transiting the Nearby K Dwarf TIC 402710280
20. 10. 2026

LTT 9779
264 ly
 +1 study icon Granulation in Color: The Chromatic Stellar Flicker of LTT-9779 and WASP-121
20. 10. 2026
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