UNIVERSE
COMETS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
They are very small
|
|
|
They are very far away
|
|
|
They move very slowly
|
|
|
They move only at night
|
Detailed explanation-1: -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.
Detailed explanation-2: -It looks like a dirty snowball. Most never enter the inner parts of the solar system as they are orbiting far out until a planet or some other gravitational object alters their orbit, only a few of these happen to get a new orbit that allows them to get closer to the Sun.
Detailed explanation-3: -Comets do move but you are not going to see this motion in real time, but rather you will notice how its position changes from day to day. This comet is a naked eye object, however, its tail is faint and wispy; the head of the comet appearing a dim fuzzy spot.
Detailed explanation-4: -We can see a number of comets with the naked eye when they pass close to the sun because their comas and tails reflect sunlight or even glow because of the energy they absorb from the sun. However, most comets are too small or too faint to be seen without a telescope.