SOLAR SYSTEM

Detailed explanation-1: -Sungrazing comets are a special class of comets that come very close to the sun at their nearest approach, a point called perihelion. To be considered a sungrazer, a comet needs to get within about 850, 000 miles from the sun at perihelion.

Detailed explanation-2: -Comet is an icy cosmic ball which orbits the Sun and while coming closer to Sun releases gases.

Detailed explanation-3: -A comet is a ball of mostly ice that moves around in outer space. Comets are often described as “dirty snowballs". They are very different from asteroids. The orbital inclinations of comets are usually high and not near the ecliptic where most solar system objects are found.

Detailed explanation-4: -Comet Hyakutake, seen right, came as close as 9.3 million miles of Earth in March 1996. Comets are completely frozen when they are far from the Sun, and most are just a few kilometers across. A comet’s appearance changes as it approaches the Sun.