There are no visible comets at this time.
Comets originate from the Oort cloud, a spherical shell of icy bodies at the outer edges of our solar system. These comets can be perturbed and sent into the inner solar system where they become visible as they approach the Sun.
All visible comets go through the solar system. Those that return periodically have elliptical orbits with the sun as one of the foci. Those that do not usually have hyperbolic orbits with the sun as a focus.
All the comets that have been seen in history were in the solar system and most still are.
Comets are made up of remnants from the early solar system, so their age is generally around the same as our solar system, approximately 4.6 billion years old. While some comets may contain even older material from beyond our solar system, as a whole, comets are not older than our solar system.
Occasionally they enter the realm of the inner solar system and become visible .five kilometers is a typical size -- but some are much larger.
Comets are visible because they reflect sunlight. As a comet travels closer to the Sun, the sunlight heats up the comet's surface, causing it to release gas and dust that form a glowing coma and tail. This reflected sunlight is what makes comets visible from Earth.
Comets are typically found in the outer regions of the solar system, beyond the orbit of Neptune. They can be observed from Earth when they come closer to the sun and develop a visible tail due to the solar wind. Astronomers track comets using telescopes and space missions.
No. There are more than that. There are currently 173 known moons orbiting planets in our solar system and many more orbiting dwarf planets, asteroids, and comets.
Comets can be found throughout the solar system, but they typically originate from the Kuiper Belt and Oort Cloud, which are located beyond the orbit of Neptune. While comets can pass through the inner solar system and be visible near Venus and Mercury, they do not originate primarily from that region.
I scientifically believe that comets are closer to the outer part of the solar system.
Nobody let them in. They formed with the solar system.
The sun.