What is the difference between earth and a star

Planets do not twinkle. Matter Hydrogen, Helium and other light elements. Solid, liquid or gases, or a combination thereon. Stars can be understood as the glowing ball, consisting of plasma, clasped together by its gravity.

Plasma is an intensely-heated state of matter. Stars are made up of gasses like hydrogen, helium and similar other light elements. The shine in the stars is due to the nuclear reaction that takes place in their core, as a result of the fusion of hydrogen into helium. The nuclear reaction occurring in the stars continuously emit energy in the form of light, in the universe, that helps us to see them and also observe them through a radio telescope.

The Sun is the closest star to the planet Earth, which is nearly million km away. The distance of stars is expressed in light-years, i. It seems moving from east to west. It is huge enough that is occupies shape of a sphere by its gravity, but not as large to effect nuclear reaction. In addition to this, it has cleared other bodies in its neighboring area. Planets of our solar system, are divided into two parts:.

The points given below are noteworthy, so far as the difference between stars and planets is concerned:. Therefore, with the above discussion, you might have got the clear understanding on the differences between these two along with the reasons for differences.

Whenever a new solar system is created, first of all, stars are formed, whereas planets are formed later on, within the orbit of the star. However, stars and planets move in differing manners.

A planet moves across the night sky while observing the rules followed by the sun and the moon. Therefore, a celestial body appearing to move in a straight line is more likely going to be a planet. Stars move in a circular pattern. Sometimes one may mistake planes and satellites for either stars or planets, but these move faster. Someone may also try a more advanced technique of identifying the ecliptic. The ecliptic is an imaginary band that planets move along.

The difficulties in identifying the belt are clear to the untrained eye, but careful observation may be able to reveal the belt. However, stars may also be in the belt. Other techniques, like looking for twinkles, should then be used to identify the stars and the planets.

Observation of the trajectory followed by the moon and sun is the easiest way to find the band since planets move close to the path. Other methods include observation of the color of different bodies, using guides and charts from credible sources, using telescopes or binoculars, and visiting dark-sky places for improved visibility.

While trying to observe the bodies, one should also make sure that factors that limit visibility are reduced. Good place to learn more about these things is: click here. A star is basically a giant ball of very high temperature gas Hence planets don't give off light by internal generation. The Earth or Mars is an example. A star is generally defined by its ability to generate light via nuclear fusion reactions that convert hydrogen into helium.

Planets are formed from the collection of gas and dust that surrounds a star. They do not have the necessary mass, when sufficiently compressed by its own gravity, to support the hydrogen-to-helium fusion reactions. On a side note, there are "in between" sized objects that aren't quite massive enough to become full blown stars, but can support other types of fusion protons into deuterium.

These are called brown dwarfs and they can emit some light early in their life. They are not quite stars, but also not really planets. Nobody has ventured out of our galaxy yet at least from Earth! Actually, nobody has been further away than the moon!

The formation of planets and stars begins with one large event. Scientists believe the process begins when a large cloud of dust and gas collapses. The material that collapses to the center forms the star and the rest of the material is left to rotate as a cloud around the star. Eventually, after tens of thousands of years, the dust in the cloud clumps together, forming planetesimals.

These bodies collide and become larger bodies known as planets. Stars are sources of energy; they emit light and heat created through nuclear fusion of hydrogen and helium in their cores.

In contrast, planets have no renewable source of energy and cool off slowly through time. There are observational differences between stars and planets, too.