PRIDE CHEKERAcomet dated back to 2 000 years ago. Halley's comet angle of
inclination of its trajectory to the plane of the Solar System is
20°, orbiting the Sun in opposite direction to the planets and its
orbit ranges between orbits of Venus and Neptune.
Due to the advancement of the human civilization, in 1986 the
comet's appearance was analyzed by the European probe Giotto.
According to this observation, Halley's comet is a small and
irregular chunk of ice, whose measurements are approximately
10m long by 5m wide. The dark material coating the comet was
thought to be composed of carbon-rich compounds. Although
this comet, is one of the darkest objects known, it has a glowing
head and tail produced by jets of gas from fissures in the outer
most layer.
We are looking for the next reappearing of the Halley's comet in
2061 since its last observation in 1986. This comet also proved
one of the powerful laws of physics which govern the universe,
Newton's Universal Gravitational Law.
Discovery of Neptune
As you saw above, the calculations of the orbit and period of
Halley’s comet was possible by ‘employing’ Newton’s
gravitational law within the calculations. This proved the beauty
embedded in physics and how its laws are consistent with
observations. In 1781 an amateur astronomer William Herschel