SOLAR SYSTEM

Detailed explanation-1: -The JFCs are active over a lifetime of about 10, 000 years or  1, 000 orbits whereas long-period comets fade much faster. Only 10% of the long-period comets survive more than 50 passages to small perihelion and only 1% of them survive more than 2, 000 passages.

Detailed explanation-2: -The History of Halley’s Comet Halley correctly predicted the comet would return in 1758. History’s first known “periodic” comet was later named in his honor. The comet has since been connected to ancient observations going back more than 2, 000 years.

Detailed explanation-3: -Halley is classified as a periodic or short-period comet, one with an orbit lasting 200 years or less. This contrasts with long-period comets, whose orbits last for thousands of years and which originate from the Oort Cloud – the sphere of cometary bodies that is 20, 000 – 50, 000 AU from the Sun at its inner edge.

Detailed explanation-4: -New evidence suggests that about 12, 000 years ago, a comet which had possibly already broken into several pieces, exploded over the Atacama Desert in Chile.

Detailed explanation-5: -Halley comet’ is a short period comet that can be seen from the earth after every 76 years. It was last seen in 1986 and it will be visiting our solar system again in 2061.