Anonymous 2 August at Unknown 7 September at Anonymous 18 October at Unknown 23 January at Unknown 27 January at Anonymous 25 February at Jayasmita Paul 28 February at Anonymous 8 March at Unknown 18 March at Unknown 20 March at Unknown 21 March at Saleha Arshi 26 March at Unknown 1 June at Unknown 3 July at Anonymous 13 July at Anonymous 5 October at Unknown 15 October at Unknown 11 January at In the case of distant planets, they also reflect the light from their own stars.
If you want to get very specific, there are some exceptions to this rule. Some planets do generate small amounts of light or radiation, but it is usually too weak to be perceived at a long distance. For example, Jupiter does generate some heat emissions that can be detected with infrared equipment, but it is invisible to the human eye.
The temperature of stars can vary wildly depending on their types. Red dwarf stars, the less hot stars start at 3, Kelvin. At the top end, blue supergiants can reach 40, Kelvin.
Our own sun is somewhere in the low end at 5, Kelvin. In this point, it is important to emphasize the part about planets only being colder than the stars in their system. It is actually possible although unlikely for a planet to be hotter than other stars as long as the star it orbits around is even hotter.
Stars are mostly made of two elements: Hydrogen and Helium. Various other gases are found in very small proportions but those are the main ones. A controversy arose during this time as Pluto, which used to be classified as a planet for the longest time was demoted to the dwarf planet classification and stripped of its planet status. Under this new definition, in order for an object to be classified as a planet it needs to meet the three following requirements:.
This means no other big objects are found in its orbit other than its own satellites. A star is defined as a luminous object that is going through the process of nuclear fusion and is shaped by its own gravity into an almost spherical shape.
The definition of a star can seem confusing as stars go through various stages during their lifetimes. The definition above applies for what is called main sequence stars, which are stars going through their main fusion stages. When a star is forming or after it dies, it receives a different classification even though some of those might also contain star in their name.
After stars die, they can turn into black dwarfs, neutron stars or black holes, depending on the size and type of the star. With that information and those definitions in mind, we can make a handy table detailing all of the things that make planets different from stars.
Reactions — Are undergoing nuclear fusion — No relevant energy reactions. Composition — Mostly made of hydrogen and helium — Can be made of rock, ice, gas, water, metals, etc.
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.
Yeah stars are found fixed in one place in the sky while the planets are found shifting their place in a short time of even an hour.
Amazing information about stars and planets to clear my concept.. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment.
Key Differences Between Stars and Planets The points given below are noteworthy, so far as the difference between stars and planets is concerned: The astronomical bodies that release their own light produced due to thermonuclear fusion, occurring at its core, is known as Stars.
The celestial object that has a fixed path orbit , in which it moves around the star, are known as Planets. Stars have their own light, whereas planets do not have their own light, they reflect the sunlight that falls on the planets. Stars move in their own separate orbits with a high speed, but due to considerable distance, their motion can be seen after a very long time.
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