is there a star that orbits a planet

Introduction

The concept of a star orbiting a planet is intriguing and challenges our conventional understanding of celestial mechanics. Typically, planets orbit stars due to the gravitational pull exerted by the more massive star. However, the search for exoplanets and the study of various star-planet systems have revealed complex and diverse orbital dynamics.

Key Insights

Planets Orbiting Stars:
- Numerous studies have confirmed the existence of planets orbiting stars, including main-sequence stars, red giants, and even pulsars .
- Planets have been found in various types of orbits, including close, eccentric, and long-period orbits .
Circumbinary Planets:
- Planets can orbit binary star systems, known as circumbinary planets. Examples include Kepler-34 b and Kepler-35 b, which orbit pairs of stars.
Planetary Systems Around Different Types of Stars:
- Planets have been discovered around a variety of stars, including sun-like stars, ultracool dwarfs, and even neutron stars (pulsars) .

Conclusion

While the data strongly support the existence of planets orbiting stars, there is no evidence to suggest that a star orbits a planet. The gravitational dynamics observed in various star-planet systems consistently show that the more massive star is the central body around which planets orbit.

Is there a star that orbits a planet

Summary

Consensus Meter

Introduction

Key Insights

Conclusion

Sources and full results

An extrasolar planet that transits the disk of its parent 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.

The HARPS search for southern extra-solar planets XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984 ,

Three new giant planets have been discovered orbiting metal-poor stars, suggesting that long-period orbits are not uncommon around these stars.

A giant planet orbiting the ‘extreme horizontal branch’ star V 391 Pegasi

This discovery of a planet orbiting a post-red-giant star shows that planets with orbital distances less than 2 au can survive the red-giant expansion of their parent stars.

Planets Orbiting Other Suns

Planets orbiting other stars are confirmed, with 5% of main-sequence stars harboring companions within 3 AU, suggesting diverse systems and the need for special initial conditions for stable coplanar orbits.

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

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.

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

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

Hints of a Planet Orbiting Sunlike Star

Swiss astronomers believe they have found the first evidence for a planet orbiting a sunlike star, detecting an apparent wobble in a star just outside the Great Square of Pegasus.

Confirmation of Earth-Mass Planets Orbiting the Millisecond Pulsar PSR B1257 + 12

The discovery of two Earth-mass planets orbiting a rapidly spinning neutron star, PSR B1257+12, constitutes the first planetary system around a star other than the sun.

Temperate Earth-sized planets transiting a nearby ultracool dwarf star

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

A Transiting Planet of a Sun-like Star

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.

Try another search