Planets are available in all sizes. Planets come in different sizes. But some of the most striking features that distinguish them are their physical and chemical peculiarities that categorize the multitude of planets that we have found in space.
I like planets. I like them so much that I live on one. They are heavy enough for gravity to round, their orbits are free of debris and they do not burn like stars. But what they are and what experiences they offer is very different.
Today I would have thought it would be exciting to look at all the different types of planets ̵
A star is a delicate system in which gravity compresses and heats everything, while nuclear fusion pushes outward in its core. Too much pressure will not allow the electrons to move freely, stopping the reaction. With too much "boom" there is not enough pressure to keep the reaction going.
Brown dwarfs teetering on the edge of the starry sky have outgrown any definition of a "planet". Nevertheless, they are not really a star. Brown dwarfs, lying between 13 and 80 times the mass of Jupiter, are huge embers that flow through space, melting deuterium and lithium together to easily burn. However, they need more matter to fight their own gravity so they can not ignite.
Brown dwarfs are not planets. They do not form like planets, but like stars. Instead of material that slowly clumps together, brown dwarfs of gas clouds collapse.
The Chonk de la Chonk, gas giants, are the largest planets that ever conquered the universe. They consist mainly (> 90%) of hydrogen and helium (the two simplest elements of the periodic table), with traces of other compounds being thrown in for the most part. Hydrogen and helium give this planet an overall brown-yellow-ocher color palette, with water and ammonia clouds covering their highest layers in white. Due to the nature of their bodies, these giants are covered in wild storms and furious winds.
We do not know much about their cores, except that it has to be immensely hot (about 20,000 Kelvin, K) and it's being pressurized there. The main hypotheses are that gas giants either have molten stone cores surrounded by rushing oceans of gas, diamond cores, or high-pressure (metallic) hydrogen nuggets.
They are sometimes referred to as "fancy stars," because these two gases keep the stars running, but the gas giants do not have enough mass to trigger a nuclear fusion. We have two of them in the solar system, Jupiter and Saturn.
Most exoplanets we've found so far are gas giants – just because they're huge and easier to spot.
Very similar to gas giants, but does not return texts. It is believed that ice giants exchange hydrogen and helium (below 10 wt%) for oxygen, carbon, nitrogen and sulfur, which are heavier. In sum, we do not know exactly what elements these planets are made of – their (admittedly thin) hydrogen sheaths hide the inside of the planets, so we can not just look. It is believed that this outer layer is very similar to the nature of gas giants.
However, it is believed that although it is not entirely made up of the ice that we know and love here on Earth, water and water ice are in their formation. above. They take their name from the fact that most of their constituents were solid when the planets formed, and because planetary scientists term elements with freezing points above about 100 K (such as water, ammonia, or methane) "ice."
Ice giants are by their name quite gigantic, but they are usually smaller than gas giants. Due to their much denser make-up, they are also more massive. There are two ice giants in our solar system, Uranus and Neptune. It is assumed that water in the form of a supercritical ocean under its clouds accounts for about two thirds of its total mass.
Both ice giants and gas giants have primary atmospheres. The gas from which they were made was accreted (captured) during the formation of the planets.
Also known as terrestrial or telluric planets (from the Latin word for earth), they mainly consist of rock and metal. Their main feature is that they have a solid surface. Mercury, Venus, Earth and Mars, the first four of the Sun, are the rocky planets of our solar system.
To the best of our knowledge, rocky planets are formed around a metallic nucleus, though the hypothesis of coreless planets applies was swum around.
Atmospheres, if present, are secondarily formed from trapped comets or generated by volcanic or biological activity. Rock planets also form primary atmospheres but can not hold them back. Secondary atmospheres are much thinner and more pleasant than those of Saturn or Uranus. This does not mean that a secondary atmosphere can not affect their planet: Venus' rampant climate catastrophe is a great example.
Mercury with a metallic core of 60-70% of its mass is as close as we found on an iron planet. Both it and the much-blinging carbon planets therefore remain hypothetical. Another exciting and cool hypothetical class of rocky planets are Chthonians, the barren rock or metal cores of gas giants.
Rocky worlds can harbor liquid water, terrain features, and potentially tectonic activity. Tectonically active planets can also create a magnetic field.
Such planets come in many different sizes. The earth is earth-sized, mercury makes up only about one-third of the earth, while Kepler-10c is 2.35 times the size of our planet. The density is also a factor. Without visiting a planet and studying its internal structure, it is impossible to estimate its density accurately. However, as a rule of thumb, uncompressed density estimates for a rocky planet are the lower the further it circles its star. It is likely that planets closer to the star have a higher content of metal (denser), while the more distant planets have a higher content of silicate (lighter). Gliese 876 d is 7 to 9 times the mass of the earth.
The first extrasolar rock planets were discovered in the early 1990s. Ironically, they were found to orbit a pulsar (PSR B1257 + 12), one of the most violent environments for a planet. Their estimated masses were 0.02, 4.3 and 3.9 times the mass of the earth.
Planets that contain a large amount of water, either on the surface or below the surface. They are an offshoot of the rocky planet, either covered with liquid water or with a layer of ice over liquid water. We do not know much about them or how many there are because we can not yet recognize surface liquid water. Therefore, we use atmospheric spectrometry as a proxy.
The Earth is the only planet on which we have confirmed the existence of liquid water on the surface so far. And although water covers about 71% of the Earth, it accounts for only 0.05% of its mass, so we are not an ocean planet. These latter are expected to be so deep that they turn into (warm) ice even at high temperatures (due to pressure).
This type of planet is still one of the most likely ways to harbor extraterrestrial life.  Dwarf Planets
Pluto, favored by fans, along with Ceres, Haumea, Makemake and Eris, is the dwarf planet of our planet solar system. Dwarf planets move on the boundary between planets and natural satellites. They are big enough to maintain their own stable shape, even to hold moons themselves, but not enough to free their orbit of other material.
Moons are not planets technically as they orbit another planet & # 39 ;. Titan, Saturn's largest moon, has its own atmosphere.
There are six planets in the solar system that aggregate 185 known natural satellites, while Pluto, Haumea, Makemake and Eris also have their own moons.
These are the planets you were warned against by your parents.
Rogue planets deserve a mention on this list, even though they do not circle a star. They are, in every sense, planets orbiting the galactic core after being ejected from the planetary system in which they formed. It is also possible that they somehow formed free of a star host. PSO J318.5-22 is one such planet.