What is the difference between nebula and galaxy? - ProProfs Discuss
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What is the difference between nebula and galaxy?

Asked by R. Barnes, Last updated: May 05, 2020

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M. Klose

M. Klose, Content Writer, Oakland

Answered May 05, 2020

Nebula and galaxy happen to be two different things present in the universe in which we live. The nebula is directly a Latin word, which means the cloud. Nebula, however, is more than just a cloud. It happens to be a cloud of interstellar dust together with other ionized gases like hydrogen and helium to be precise. On the other hand, a galaxy is a large collection of stars that are held together with the help of gravitational attraction.

A galaxy constitutes the system of stars, star clusters together with interstellar dust. Another difference between these two is that the galaxy is far larger than nebula by a great number of magnitudes. In addition, we can find nebula in a galaxy, whereas a galaxy cannot be contained inside a nebula. Galaxies are classified based on their different sizes, shapes, and brightness into a spiral, elliptical, and irregular galaxies.

Conversely, the nebula is classified into these four types based on their structures: emission nebulae, dark nebulae, hill regions, and supernova remnants. On the other hand, Nvarchar happens to be a column that can store Unicode data at any length. 8-bit coding is the code page that Nvarchar should adhere to.

A significant difference between Varchar and Nvarchar is their sizes, of which the former has a maximum capacity of 8000, while the latter has a maximum size of 4000. This simply means that Varchar's single column can contain up to 8000 characters, while Nvarchar's single column can contain up to 4000 characters at most.

 

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