Dynamical tides significantly affect planetary orbits during the pre-main-sequence phase for fast-rotating stars, but have no significant effect during the red giant branch phase.

Star-planet interactions

A gas giant planet with a radius of 1.27  0.02 RJup is observed transiting the disk of its sun-like star, HD 209458.

Detection of Planetary Transits Across a Sun-like Star

The HD 136352 system, with its three planets and bright host star, offers a valuable tool for atmospheric and orbital characterization of small worlds.

Transits of Known Planets Orbiting a Naked-eye Star

Rapid initial stellar rotation and efficient angular momentum transport contribute to the enlargement of the domain devoid of planets after the pre-main-sequence phase.

Three short-period Earth-sized planets have been observed transiting an ultracool dwarf star, with the third likely receiving significantly less irradiation than Earth.

Temperate Earth-sized planets transiting a nearby ultracool dwarf star

Seven Earth-like planets orbit TRAPPIST-1, with temperatures low enough for liquid water on their surfaces, suggesting they formed further from the star and migrated inwards.

Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1

LHS 1140b, a 6.6 times Earth-mass planet transiting a cool star, is within the liquid-water habitable zone and may have retained its atmosphere due to its large surface gravity and cool insolation.

A temperate rocky super-Earth transiting a nearby cool star

A 0.9 Jupiter mass object in an orbit of 0.023 au from its star causes periodic dimming of starlight, suggesting it may be a transiting planet.

An extrasolar planet that transits the disk of its parent star

A warm Jupiter-like planet orbits the G-type giant star HD 167768, with a short orbital period and potential for engulfment within 0.15 Gyr.

A close-in planet orbiting giant star HD 167768

HD 1397b is a transiting warm giant planet orbiting a subgiant star, with a mass of and a radius of, and is one of the brightest systems to host a transiting planet.

HD 1397b: A Transiting Warm Giant Planet Orbiting A V = 7.8 mag Subgiant Star Discovered by TESS

Planet 9 may be an axion star, which may be difficult to distinguish from an isolated primordial black hole due to its low frequency or weak decay signals.

Can planet 9 be an axion star?

A planet with a mass of 13.2 Earth masses has been discovered orbiting a very low-mass star, challenging theories of planet formation and demonstrating the existence of massive planets orbiting low-mass stars.

A low-mass star with a large-mass planet

More than 1% of close binary stars have giant planets in nearly coplanar orbits, indicating a Galactic population of at least several million.

Transiting circumbinary planets Kepler-34 b and Kepler-35 b

The planetary companion orbiting 51 Pegasi likely formed at a distance of 5 AU and migrated inwards, possibly due to tidal interactions with the star or truncation of the inner circumstellar disk by the stellar magnetosphere.

Orbital migration of the planetary companion of 51 Pegasi to its present location

WASP-41b is a transiting hot Jupiter planet orbiting a magnetically active G8V star, with a mass and radius of 0.92  0.06 MJup and a gyrochronological age of 1.8 Gyr.

WASP-41b: A Transiting Hot Jupiter Planet Orbiting a Magnetically Active G8V Star

This study discovers a new planetary system with one super-Earth and two sub-Neptunes orbiting an evolved star, offering potential for further study on dynamical aspects.

Three planets transiting the evolved star EPIC 249893012: a hot 8.8-M⊕ super-Earth and two warm 14.7 and 10.2-M⊕ sub-Neptunes

The planet XO-1b transits an 11th magnitude, G1 V star in the constellation Corona Borealis, with a mass 0.90  0.07MJ and an orbital period of 3.941534  0.000027 days.

A Transiting Planet of a Sun-like Star

Kepler-186f, a roughly Earth-sized planet, is in the habitable zone of a cool star, potentially allowing liquid water on its surface if it has an Earth-like atmosphere and water at its surface.

An Earth-Sized Planet in the Habitable Zone of a Cool Star

GJ 1132b, a 1.2 Earth-radii planet transiting a nearby low-mass star, has a density consistent with an Earth-like bulk composition, but is too hot for habitability and cool enough to support a substantial atmosphere.

A rocky planet transiting a nearby low-mass star

is it possible for a star to orbit a planet

These studies suggest it is not possible for a star to orbit a planet.