Scientists have discovered six alien worlds orbiting a star in perfect synchronization. This rare phenomenon is called a chain of resonance. The six exoplanets orbit the orange dwarf star HD 11067, which is located in the constellation Coma Berenices and is 100 light years away.  

The discovery was made by NASA’s transiting exoplanet survey satellite TESS in 2020. The data initially appeared puzzling, with signs of two orbiting planets.  The science team, led by Rafael Luque of the University of Chicago, worked through a list of resonances that could be found in such systems. They tried to match them to the remaining transits that had been picked up by TESS. 

The system is a living fossil that astronomers can use to study how and where planets form. The system is similar to our own solar system, which has eight planets revolving around the Sun

They orbit around the bright star HD 110067. Just like our solar system in the Milky Way has eight (sorry Pluto, it’s not nine) planets revolving around Sun, a planetary system a bit far from us has six worlds orbiting their star in perfect harmony, resembling to an extent our own solar system.

A chain of resonance is a group of planets where each pair is in resonance. The orbital period ratio is locked at a rational value, such as 2/1 or 3/2. 

Here are some examples of chains of resonance: 

• Six exoplanets Six exoplanets in a planetary system 200 light years away were found in a rare orbital dance. 
• Six planets around HD 110067 Each of the six planets follows a chain of resonance around the star HD 110067. 
• Jupiter and Saturn Jupiter and Saturn are in a near 2:5 resonance, which causes them to regularly interact and exchange orbital energy. 
• Neptune and Pluto Neptune completes three orbits for every two orbits of Pluto.

A resonant orbit is when two orbiting bodies have a regular gravitational influence on each other. This happens when their orbital periods are related by a ratio of small integers.  

Orbital resonances can: 

• Affect the eccentricity of orbits 
• Enhance the mutual gravitational influence of the bodies 
• Identify planets that are close to each other at predictable times 

Some examples of resonant orbits in our solar system include: 

• Mercury: Mercury has a 3:2 spin-orbit resonance, meaning it rotates on its axis three times for every two orbits around the sun. 
• Neptune and Pluto: Neptune and Pluto have a 3:2 resonance. 
• Saturn and Jupiter: Many of Saturn and Jupiter’s moons are in resonance.

The star HD110067 is located in the constellation Coma Berenices. It’s a rare star system with six exoplanets that have remained unchanged for billions of years. The star is 100 light-years away

The five outer planets in the system have a chain of resonance of 18:9:6:4:3. This is one of the longest chains of resonance ever discovered in a planetary system. The second planet from the star completes 18 orbits, the third planet completes 9 orbits, and so on. 

The constellation Coma Berenices is one of the 88 modern constellations. It’s located in the northern sky, between Leo and Boötes. The constellation’s name translates to “Berenice’s Hair” in Latin. It’s named after Queen Berenice II of Egypt, who offered her long hair as a votive offering

Coma Berenices is a constellation in the northern sky. It’s also known as Berenice’s Hair. The constellation is named after Queen Berenice II of Egypt

The constellation represents the hair of Queen Berenice. According to legend, Berenice vowed to cut off her long hair as a sacrifice to Venus if her husband, Ptolemy III, returned safely from war. In gratitude for a military victory, Berenice shaved her hair in the third century BC. 

Coma Berenices is one of the 88 modern constellations. It’s visible in both hemispheres, between Leo and Boötes. The constellation has more than 60 stars, including: 

• Alpha Comae Berenices 
• Beta Comae Berenices 
• Gamma Comae Berenices 

Coma Berenices also contains a galaxy cluster with thousands of galaxies. It’s one of the densest galactic groupings visible from Earth

The constellation Coma Berenices was introduced to Western astronomy in the third century BC. It’s the oldest surviving constellation to have been introduced since the second century.

The constellation was introduced by Conon of Samos, the court astronomer of Egyptian ruler Ptolemy III Euergetes. The constellation honors Ptolemy’s consort, Berenice II. 

The constellation is named for Queen Berenice II of Egypt, who sacrificed her hair to the goddess Aphrodite in 246 BCE.  Berenice was concerned for the safety of her husband, Ptolemy III, when he went off to war. She vowed to cut off her long hair as a sacrifice to Venus if he returned safely.  He did, and Berenice kept her promise. 

Aphrodite was so pleased by the gift of Berenice’s hair that she placed it in the night sky.

HD 110067 is a bright K0-type star located in the constellation Coma Berenices. It’s about 100 light years away from Earth.  

HD 110067 has six known sub-Neptune exoplanets: 

b, c, d, e, f, g. 

The planets orbit the star in a rhythmic orbital resonance. The planets’ radii range from 1.94R⊕ to 2.85R⊕. 

HD 110067 has a mass and radius of about 80% of the Sun’s. It’s very bright compared to other stars that host mini-Neptunes. 

The planets’ orbits could provide clues about the formation of our own Solar System. Follow-up observations from telescopes like the James Webb Space Telescope could provide more information about the planets and how they formed(full article source google)

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