Astronauts have discovered a six-planet system orbiting the star 158259 HD, which is 88 light-years away. The planet’s system is made up of super-Earth and five mini-Neptunes that feature extremely consistent space. Astronomers said the orbital motion is almost perfect in the planet’s system giving advice on how it could be formed.
The star, HD 158259, is about the same mass but slightly larger than the Solar System Solar. Astronomers discovered the six-planet system in the Draco constellation using the SOPHIE spectrograph installed at the Haute-Provence Observatory in Southern France, the Deccan Herald reported.
They published their findings in the magazine Astronomy & Astronomy.
The almost perfect six-planet system with orbital repositioning
Astronomer Nathan Hara of the University of Geneva in Switzerland led an international team of researchers who used the SOPHIE spectrum and the TESS exoplanet space hunting telescope to study the six-planet system.
Astronomers have been observing the six-planet system orbiting HD 158259 for seven years when they discovered that the planets were in near perfect orbital. According to ADS, orbital repositioning occurs when two or more systems or planets surrounding their parent body have a gravitational effect on each other.
In the Solar System, Pluto and Neptune are the best examples of orbital repositioning, although experts have noted that orbital repositioning is very rare in planetary systems.
The six-planet system has been closely linked to the planet’s outermost distance to its star, which is 2.6 times the distance between Mercury and the Sun, the researchers said.
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In addition, they said that almost every planet orbiting HD 158259 is in almost 3: 2 orbital repositioning with the next planet out of their star. This was also defined as a time ratio of 1.5, which means that when a planet completes three orbits, the next one completes two orbits.
The astronomers reported that the planets were moving closely with orbits that are 2.17, 3.4, 5.2, 7.9, 12, and 17.4 days, or time ratios of 1.57, 1.51, 1.53, 1.51, and 1.44 between each pair of planets. , according to ScienceAlert. this may not be a perfect reset, but it is close enough for the six-planet system that surrounds HD 158259 to be classified as an amazing planetary system.
The closest planet to the star is the Super-Earth, which TESS revealed to be twice the size of Earth.
The planets did not form in the planetary system
The astronomers believe that an almost perfect orbital repositioning in the planet’s system is a sign that the planets did not form there. Astronomer Stephane Udry of the University of Geneva said there were tight systems with several planets believed to form far from the star before migrating to it.
They said the iterations play an important role in creating tight systems where the planetary primroses in the protoplanetary disk grow and migrate towards the star away from the edge of the planet. -outside the disc. This produces a series of orbital resonance throughout the planetary system.
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