First of all, it's our Solar System (unless you live in another Solar System). They were all discovered by telescopes and mathematics. Their orbits were predicted based on perturbations of other planets. This is a fascinating study and well worth pursuing if you are interested in this kind of thing.
A star, planets, satellites of the planets, asteroids, meteors, comets, dust particles and also vacuum.
We'll assume the questioner meant "planets." Only the planets of our own solar system have "personal" names. All the others that we know of are designated by the name of their parent star. The Sun's planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Precisely because: That's the way that gravity works.
From a mass standpoint, the best answer is "The Sun, Jupiter, Saturn, and miscellaneous debris." More specifically: other than the Sun, which is nearly all the mass of the solar system, there are 8 planets, satellites of those planets (a couple of hundred of these), asteroids, Kuiper belt objects (and what are sometimes called "trans-Neptunian objects" for lack of a better name), the Oort cloud, and weirder things like comets and the rings of the outer planets.
If by all the systems you mean altogether, it would be the galaxy. See, each system is like one of our Solar Systems, with lots of planets, right? and a lot of systems makes up what is known, to them, as a "rim" So there's the inner rim, the middle rim, and the outer rim. Beyond the outer rim are the "unknown regions" where there are no hyperspace lines, meaning the unexplored area of their galaxy and the galaxies beyond.
scientists who found them
Outer planets and inner planets are compared because they have distinct differences in size, composition, and characteristics. Inner planets are smaller, rocky, and denser, while outer planets are larger, gaseous, and have thick atmospheres. Studying these differences helps scientists understand how planets form and evolve in our solar system.
Telescopes have helped discover many things in space that are not visible such as some of the outer planets of our solar system.
The outer (major) planets of our solar system are the 4 gas giants:JupiterSaturnUranusNeptuneFurthermore, 4 out of the 5 dwarf planets are also in the outer solar system, beyond the orbit of neptune:PlutoHaumeaMakemakeEris
They used a telescope
the four outer planets of this solar system are as followed. jupiter, satern, uranus, and neptune.
That all of them scientists have found do not have the air we breathe
The outer Solar System is the part outside the orbit of Mars. This region of the Solar System is home to four planets and numerous dwarf planets. The planets are Jupiter, Saturn, Uranus and Neptune.
Inner planets have a radius orbit shorter than the orbit of Jupiter. Outer planets are all the other planets of the solar system.
The inner planets are closer together than the outer planets are.
They have in common is that they are the last planets in the solar system
The inner and outer planets are The same because The Inner planets are not made out of gas The outer planets are bigger than inners The outer planets are the coldest The Inner planets are rocky The inner planets are terrestrial The outer planets can't support life The inner planets have iron cores The outer are the furthest from the sun The outer planets haveno rocky surface