Hidden Planet Deflects Exoplanet TOI-2535 b From View
Exoplanet TOI-2535 b vanished from telescope view after a hidden neighboring planet shifted its orbit, astronomers have discovered.
Located roughly 1,000 light-years from Earth, the distant world spent seven years under observation by the National Aeronautics and Space Administration Transiting Exoplanet Survey Satellite. That monitoring period ran from April 2019 to March 2026, according to raketa.hu.
The planet completes an orbit around its host star in just 8.25 Earth days. That speed makes it roughly ten times faster than Mercury moves around the Sun, placing the scorching world into the hot Jupiter classification.
Scientists have long debated how such massive planets form so close to their host stars. Current theories suggest that hot Jupiters actually originate much farther out before migrating inward over time.
Observations showed that the orbit of TOI-2535 b was irregular, often arriving six hours ahead of schedule or running late. By March, the TESS spacecraft stopped detecting the characteristic dips in starlight caused by the planet crossing in front of its star.
Researchers analyzed the telescope data and determined that a previously undetected planet shares the system, exerting gravitational influence that disrupts both orbits. The two bodies pull on each other and cause their orbital planes to shift constantly.
That gravitational wobble pushed TOI-2535 b out of the alignment needed to cross the face of its star from our viewpoint.
“This is a very extreme example that the universe is not a clockwork, and the system’s planets can also have an effect on each other’s orbits,” said Samuel Yee, a member of the research team.
Current calculations indicate that TOI-2535 b will likely remain hidden and fail to transit its host star for at least 30 years. The unseen planetary neighbor that disrupted its path, however, may cross the stellar disk much sooner.