Differentiate between the following:
(a) Star and planet
(b) Asteroid and comet
(c) Meteoroid and comet
(d) Galaxy and constellation
Answers
Explanation:
The main difference between asteroids and comets is their composition, as in, what they are made of. Asteroids are made up of metals and rocky material, while comets are made up of ice, dust and rocky material. Both asteroids and comets were formed early in the history of the solar system about 4.5 billion years ago. Asteroids formed much closer to the Sun, where it was too warm for ices to remain solid. Comets formed farther from the Sun where ices would not melt. Comets which approach the Sun lose material with each orbit because some of their ice melts and vaporizes to form a tail.
Check out fun astronomy videos
Answer:
A star is a celestial body that produces its own light due to a reaction at its core. There are millions of stars. On the other hand, a planet is a celestial body that has a fixed course, otherwise known as an orbit. The orbit is the pathway that allows the planet to move around a star.
The main difference between asteroids and comets is their composition, as in, what they are made of. Asteroids are made up of metals and rocky material, while comets are made up of ice, dust and rocky material. Both asteroids and comets were formed early in the history of the solar system about 4.5 billion years ago.
Comet: A body of ice, rock and dust that can be several miles in diameter and orbits the sun. Debris from comets is the source of many meteoroids. ... Meteor: A meteoroid that enters the earth's atmosphere and vaporizes. Also called a “shooting star.”
A constellation is the imaginary pattern formed by a few stars. There are 81 known constellations. A galaxy is group of millions or even billions of stars, and it's planets and satellites and all of the stuff. Galaxies can be of these shapes- Spiral, barred spiral, elliptical and irregular.
Explanation: