Main asteroid belt between the orbits of Mars and Jupiter. It is assumed that about 1 million asteroids larger than 1 km reside in Main asteroid belt.
Video rendering (by Peter Veres) of a first discovered interstellar object 1I/'Oumuamua. It is probably the most elongated natural object ever observed, with the axial ratio of 1:6 - 1:10. Approximate size of the object is 230x35x35 meters. Discovered by Pan-STARRS1 on October 19, 2017.
Asteroids with confirmed ring systems. Graphical rendering Left to right: 2060 Chiron, 10199 Chariklo, 136108 Haumea.
Meteoroids are tiny fragments of comets and asteroids. When they enter the Earth's atmosphere, they burn as meteors and disintegrate 80-120 km above the surface. When we observe the meteor trail by at least two stations separated by tens of kilometers, we can compute the 3D atmospheric trajectory and derive the heliocentric orbit. Helicentric orbits lead to the parent body that released the meteoroids or can serve as an indicator of already disintegrated body. Additionaly, we can obtain a spectrum of a meteor and study the volatiles in the ionizied trail.
The global network for all-sky video meteor surveillance - AMOS Video Meteor Network, PI: Juraj Toth (Comenius University, Slovakia)