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TIC 220432308 b

TIC 220432308 b
Image: NASA Science

Astronomers announced the discovery of TIC 220432308 b in 2026, a Neptune-like exoplanet with 5.73 Earth masses. Orbiting its star in just 3.3 days at 0.0445 AU, it offers key data on close-in planets.

Neptune-like Planet Announced in 2026

Astronomers have added another world to the catalog of known exoplanets, discovering a new planet with Neptune-like characteristics. Officially announced in 2026, TIC 220432308 b belongs to a class of smaller planets orbiting remarkably close to their host stars. Observational data collected by researchers revealed the primary parameters of this planetary system.

Close-in Orbit and Measurement Details

Measurements indicate that TIC 220432308 b has a mass equivalent to 5.73 Earths. The planet is situated extremely close to its host star, at a distance of just 0.0445 Astronomical Units (AU). Due to this proximity, it completes a full orbit around its host star in a brief period of only 3.3 days.

Scientific Significance and Future Plans

Studying Neptune-like exoplanets in tight orbits is essential for understanding planetary migration theories and atmospheric processes. The mass and short orbital period of TIC 220432308 b offer valuable insights into the nature of close-in sub-Neptune worlds. Researchers plan to follow up with further observations to better constrain its physical properties.

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