Phobos: Is Phobos a planet or an asteroid

It belongs to the satellite. Phobos (English pronunciation"foh bus"Forbos) is in the shape of a potato, orbiting Mars three times a day, with an average distance of about 9,378 kilometers from Mars. It is the larger of the two moons of Mars and the closest to Mars.

The distance between Phobos and Mars is also the shortest of all the moons in the solar system from their host star, only 6,000 kilometers from the surface of Mars. It is also one of the smallest moons in the solar system, and Phobos is a small, irregularly shaped celestial body. Orbiting Mars, the orbit is about 9,400 km from the center of Mars, that is, 6,000 km from the surface of Mars.

Phobos is closer to its home planet than the moons of other known planets. Phobos has a huge impact crater on Phobos, one of the most reflective objects in the solar system, called the Stickney Crater. Due to its close orbit to Mars, Phobos rotates faster than Mars.

Thus, as seen from the surface of Mars, Phobos rises in the west, streaks across the sky in 4 hours and 15 minutes or less, and sets in the east. Due to the short orbital period and tidal forces, Phobos' orbital radius is gradually decreasing, and eventually it will hit the surface of Mars or shatter to form a ring.

It's an asteroid, it's captured by Mars, so it becomes a moon.

Mars belongs to terrestrial planets.

Mars (English: mars; Latin: martis; Astronomical symbol: ) is the fourth closest planet to the Sun and the second smallest planet in the Solar System after Mercury, and is one of the four terrestrial planets in the Solar System.

The Martian atmosphere, dominated by carbon dioxide, is thin and cold, full of impact craters, canyons, sand dunes and gravel, and has no stable liquid water. The Southern Hemisphere is an old, crater-filled highland, while the Northern Hemisphere is a younger lowland plain. Mars is home to Mount Olympus, the largest known mountain in the solar system, and Mariner Canyon, the largest canyon.

Mars has two natural satellites: Phobos and Deimos, which are irregularly shaped and may have been captured asteroids. Based on observational evidence, Mars has been observed to resemble groundwater gushing, with a partial retreat of the Antarctic ice cap, and radar data showing the presence of large amounts of water ice beneath the surface at the poles and mid-latitudes.

Phobos (foh bus) is potato-shaped, orbiting Mars three times a day, with an average distance of about 9,378 kilometers.

It is the larger of the two moons of Mars and the closest to Mars. The distance between Phobos and Mars is also the shortest of all the moons in the solar system from their host star, only 6,000 kilometers from the surface of Mars. It is also one of the smallest moons in the solar system.

The radius of Phobos' orbital motion is smaller than the radius of the synchronous orbit, so it travels at a high speed, usually rising from the west to the east twice a day. Because it is so close to the Martian surface, it cannot be seen on the horizon from any angle of the Martian surface.

It is inferred that since its orbit is smaller than that of a synchronous orbit, tidal forces are constantly making its orbit smaller and smaller (recent statistics show that it is decreasing at a rate of meters per century). So, it's estimated that in about 50 million years, Phobos will either crash into Mars or disintegrate into a halo. (This is similar to the effect of the reaction force of the moon's lift.)

Phobos and Deimos may be made up of carbon-rich rocks like type C asteroids. But they can't be made of pure rocks because their density is too low. They are most likely made up of a mixture of rock and ice, and they both have deep crustal pits.

The Soviet probe Phobos-2 detected a faint but persistent gas escaping from the phobos. Unfortunately, Phobos 2 was unable to work until the composition of the gas was detected. Water is perhaps the most likely component.

Phobos No. 2 also brought back some**.

The most prominent topographical feature on the Phobos is a large pit called Stickney, which is the name of the aforementioned Hall's wife. Like Enceladus's crater Herschel (smaller in size). Stickney must have had the role of destroying Phobos.

Origins of Phobos.

Phobos and Deimos are mostly thought to be captured asteroids, while some believe that they originated outside the solar system rather than from the asteroid belt. The low density of Phobos has led some to believe that it is hollow, and some even believe that it is actually a "Martian man-made spacecraft" (although such a bold conjecture is not very convincing). Phobos has a very low escape velocity, only one thousandth of Earth's, and if a professional high jumper on Earth can stand on the surface of Phobos, he can "launch" himself into space.

Phobos, also known as Forbos, orbits Mars at a distance of 9,400 kilometers and moves in the same direction as Mars' rotation and revolution, from west to east. Interestingly, Phobos' orbital period is more than 3 times faster than that of Mars, so on Mars, you will see the spectacle of Phobos rising in the west and setting in the east, which is unique among all the moons of the solar system.

The radius of Phobos' orbital motion is smaller than the radius of the synchronous orbit, so it travels at a high speed, usually twice a day in the process of rising in the west and falling in the east.

It is too close to the surface of Mars, on Mars, at a higher latitude, and Phobos is below the horizon. It is inferred that since its orbital deficit is smaller than that of a synchronous orbit, tidal forces are constantly making its orbit smaller and smaller (recent statistics show that it is decreasing at a rate of 2 meters per Zen Chronicle). So, it is estimated that in about 40 million years, Phobos will either crash into Mars or decompose into a halo (similar to the effect of the anti-ominous force of the moon's lift).