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What is the Largest Solar System?

Assuming for this, we are not counting asteroids and comets but are just counting stars and planets that are contained within the Solar system. I'm not talking about how far the furthest star is from its Sun also, just the number of objects in the solar system. The biggest that we know of is our own solar system. We will never know the largest solar system in the universe because it is so vast and so spread out. we will never be able to survey everywhere. The largest known Solar Systems are :

Our Solar System

Our very own Solar System is the largest that we know of. The solar system contains eight planets, four rocky planets ( Mercury, Venus, Earth, Mars) and Four Gas Giants ( Jupiter, Saturn, Uranus, Neptune). I'm not including the likes of Eris, Pluto and Ceres for the moment as I would then need to include other Dwarf Planets.

Trappist 1

Trappist-1 in the constellation of Aquarius is currently the largest solar system that we have so far discovered. The solar system contains 7 planets, labelled from b to h. The 'a' is always reserved for the star that the planets are in orbit around. Trappist 1 is a small red dwarf star, the type that makes it easy for scientists to discover planets around. When a planet orbits a star, it pulls on it and that's how they were discovered. Even the Earth being so much smaller than the Sun pulls on the star and causes a distortion.

It is easier to discover planets around small stars because the distortion is more visible than those of bigger stars. We have discovered stars round larger stars, for example, we have discovered a planet around Hamal and Aldebaran. Both of those stars are the brightest stars in Aries and Taurus respectively.

AR Cassiopeiae and Jabbah

AR Cassiopeiae and Jabbah (Nu Scorpii) are two Septulet star systems. This means both stars have seven stars that make up the multiple star system. These are the only two star systems that are recognised as having seven stars in the system at the moment.

Castor

Another notable multiple star system is Castor, Alpha Geminorum. It is in fact dimmer than the Beta Geminorum (Pollux) but Castor has the Bayer classification. All six stars all contribute to its brightness.


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