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27. 10. 2026
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V1298 Tau b showed helium absorption during all four observed transits across four years, but its active host star may affect the signal. The latest findings also point to silicate clouds on TOI-561 b, a warped dust ring around CQ Tau, and a giant planet candidate near Boyajian's star that may be surrounded by vast rings. New atmospheric models reveal why gas compositions can vary across hot giant planets.
TOI-159 b: A hot Jupiter with eccentric orbit around a young, pulsating star
icon9. 5. 2026
iconStars | Exoplanets | TESS | Hot Jupiter
Image: TOI-159 b: A hot Jupiter with eccentric orbit around a young, pulsating star
Astronomers have confirmed TOI-159 b, a giant planet orbiting a young (about 150 million years old), fast-rotating, and pulsating Doradus star. This planet is the hottest known hot Jupiter with a significant orbital eccentricity, making it a rare find. The host star's rapid rotation and pulsations make such discoveries challenging, but the team used a combination of radial velocity, transit, and spectro-photometric data to confirm the planet and study its properties. TOI-159 b orbits in a clo...
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New companion candidate and spiral found in HD 142527's inner disk
icon9. 5. 2026
iconStars | Planet formation | Exoplane
Image: New companion candidate and spiral found in HD 142527
HD 142527 is a young star with a complex disk and a known low-mass companion. Using advanced imaging techniques with VLT/SPHERE, astronomers explored the inner region of the system, searching for hidden companions and features that shape the disk. They confirmed and updated properties of the known companion, HD 142527 B, and identified a new candidate companion about 14 au from the star, which could be a young planet, brown dwarf, or a disk featu...
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XO-3 b's near-UV transit reveals deeper absorption and timing offset
icon9. 5. 2026
iconStar
Image: XO-3 b
Researchers observed the near-UV (NUV) transit of XO-3 b, a massive hot Jupiter with an eccentric orbit, using XMM-Newton and ground-based telescopes. The NUV transit was found to be 30-70% deeper than in the optical, suggesting a large NUV-absorbing atmosphere. Interestingly, the NUV transit occurred about 22 minutes later than expected from optical data, even though the optical transits showed no timing variations. The team explored possible...
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TRAPPIST-1 flares follow a single power law over four energy orders
icon9. 5. 2026
iconStar
Image: TRAPPIST-1 flares follow a single power law over four energy orders
TRAPPIST-1, an ultra-cool dwarf star, is known for frequent stellar flares that impact its planets' atmospheres and can interfere with observations. Researchers combined data from JWST and Kepler/K2 to analyze the flare-frequency distribution (FFD) across four orders of magnitude in energy. By converting all flare energies to the TESS bandpass and correcting for detection sensitivities, they found that the cumulative FFD follows a single power la...
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Brown dwarf, warm Jupiter, and hot super-Earth share coplanar orbits in TOI-201 system
icon6. 5. 2026
iconStars | Exoplanets | Brown dwarfs | Super-Earth
Image: Brown dwarf, warm Jupiter, and hot super-Earth share coplanar orbits in TOI-201 system
Astronomers have discovered a remarkable planetary system around the young star TOI-201, featuring three very different companions: a hot super-Earth, a warm Jupiter, and a highly eccentric brown dwarf. Using long-term radial velocity and transit timing data, the team found that all three objects orbit in the same plane. The brown dwarf, with a mass about 16 times that of Jupiter and an 8-year orbit, is the longest-period transiting object ever c...
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Stellar models show HD 20794 preserves its chemical fingerprint over billions of years
icon6. 5. 2026
iconStar
Image: Stellar models show HD 20794 preserves its chemical fingerprint over billions of years
HD 20794 is a nearby, metal-poor G-type star hosting a compact planetary system, including a super-Earth near the habitable zone. Scientists used detailed stellar evolution models to study its structure and chemical abundances. By comparing 252 models with observed properties like temperature, gravity, luminosity, and radius, they found the best fit for a star with 0.80 solar masses and an age of about 9 billion years. The models accurately re...
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ALMA reveals hour-scale radio variability from accreting protoplanet PDS70c
icon6. 5. 2026
iconStars | Exoplanets | ALMA
Image: ALMA reveals hour-scale radio variability from accreting protoplanet PDS70c
PDS70c is a young, forming planet still accreting material from its surrounding disk. Using ALMA radio observations at 343 GHz, scientists studied how the planet's radio brightness changes over time. By carefully subtracting the average background signal and analyzing the data in short time intervals, they found that PDS70c's radio emission can vary significantly on hour-long timescales. In the 2017 data, the planet's radio brightness increase...
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TOI-4600 hosts two long-period giant planets with strong transit timing variations
icon6. 5. 2026
iconStars | Exoplanets | TESS
Image: TOI-4600 hosts two long-period giant planets with strong transit timing variations
TOI-4600 is an early K dwarf star with two rare, transiting giant planets on long orbits. TOI-4600b has an orbital period of about 83 days and a mass of nearly 75 Earth masses, while TOI-4600c orbits every 483 days and is about 213 Earth masses. Both planets show significant transit timing variations, with their transits shifting by about an hour, indicating strong gravitational interactions between them. Researchers combined new TESS data, gr...
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JWST detects rare oxygen and nitrogen isotopes in the cold atmosphere of COCONUTS-2b
icon6. 5. 2026
iconStars | Exoplanets | James Webb Space Telescope | Planetary atmosphere
Image: JWST detects rare oxygen and nitrogen isotopes in the cold atmosphere of COCONUTS-2b
COCONUTS-2b is one of the coldest known planetary-mass companions, orbiting far from its M dwarf host star. Using the JWST MIRI/MRS instrument, scientists obtained a detailed spectrum of its atmosphere at a temperature of about 480 K. For the first time, they detected rare isotopologues—molecules with different isotopes—of ammonia and water: ^{15}NH3, H2^{18}O, and H2^{17}O. This is the first clear evidence of oxygen isotopes in water in a cold p...
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JWST reveals LHS 3844 b has a dark, basalt-like surface with no volcanic gases
icon6. 5. 2026
iconStars | Exoplanets | James Webb Space Telescope
Image: JWST reveals LHS 3844 b has a dark, basalt-like surface with no volcanic gases
LHS 3844 b is a rocky exoplanet whose surface was studied using mid-infrared spectroscopy from the James Webb Space Telescope. The planet's thermal emission spectrum between 5 and 12 microns matches that of a dark, low-silica surface, such as basalt or olivine-rich rock. The data rule out the presence of fresh powdery surfaces, but space weathering could darken such materials to match the observations. The spectrum shows no evidence for signif...
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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
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

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.

 V1298 Tauri
352 ly
 study icon The GAPS Programme at TNG LXXXI. The puzzle of the HeI absorption signal in the atmosphere of V1298 Tau b with GIARPS@TNG
today

CQ Tauri
487 ly
 study icon A Warped Dust Ring in the CQ Tau Disk
today

TOI 561
276 ly
 study icon A Highly Reflective Atmosphere on the Lava World TOI-561b Revealed by JWST/NIRSpec Phase Curves
today

HAT-P-11
124 ly
 study icon Spatial variability of CH4-to-CO conversion pathways in irradiated gas giant atmospheres: implications for chemical relaxation and 1D quench schemes
today

KIC 8462852
1470 ly
 study icon The anomalously large transiting planet around Boyajian's star: evidence for a circumplanetary ring
today

Circinus X-1
31000 ly
 study icon Breaking the symmetry: X-ray polarization from a spreading layer on a tilted weakly magnetized neutron star
24. 10. 2026

HD 74371
5445 ly
 +5 study icon Photometric variability of blue supergiants: Constraints on stellar masses and evolutionary stages
24. 10. 2026

WASP 121
858 ly
 study icon Detection of Solar-like Oscillations and Granulation at Infrared Wavelengths using JWST
23. 10. 2026

WASP-43
284 ly
 study icon The coupled impacts of atmospheric dynamics and cloud microphysics on hot Jupiter atmospheres. I. An application to WASP-43b
23. 10. 2026

TOI 3884
141 ly
 study icon A Headwind-like Helium Outflow from TOI-3884b
23. 10. 2026
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