SOLAR SYSTEM

UNIVERSE

ASTEROIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
As a comet approaches the sun, what features does it add? Select all that apply.
A
gas tail
B
thick atmosphere
C
coma
D
dust tail
Explanation: 

Detailed explanation-1: -properties of comets The dust tail forms from those dust particles and is blown back by solar radiation pressure to form a long curving tail that is typically white or yellow in colour.

Detailed explanation-2: -Comets go around the Sun in a highly elliptical orbit. They can spend hundreds and thousands of years out in the depths of the solar system before they return to Sun at their perihelion. Like all orbiting bodies, comets follow Kepler’s Laws-the closer they are to the Sun, the faster they move.

Detailed explanation-3: -Astronomer Fred Whipple created the term “dirty snowballs” as one of the many ways to describe the characteristics of comets. These bodies are made of dust, rocks, organic compounds, and ice, and have three parts: nucleus, coma, and tail.

Detailed explanation-4: -But when it approaches the sun, the heat evaporates the comet’s gases, causing it to emit dust and microparticles (electrons and ions). These materials form a tail whose flow is affected by the sun’s radiation pressure.

There is 1 question to complete.