Home » General Knowledge » GK Question “What Do You Know About The Brightest Star?” general knowledge book English 2021 current affairs quiz and answers for class 7, 8, 9, 10, 12 students Exam.

GK Question “What Do You Know About The Brightest Star?” general knowledge book English 2021 current affairs quiz and answers for class 7, 8, 9, 10, 12 students Exam.

What Do You Know About The Brightest Star?

Looking up in the sky we try to find the brightest star. We imagine that the stars are in countless numbers. At the most, we can see about 6000 stars without a telescope. About 25 percent of them are too far south to be seen in North America.

About 2000 years ago, since the days of the Greek astronomers, the stars are classified according to the magnitude or brightness. These we divided into six categories only until the advent of the telescope. The brightest rank at number one of the list and the faintest are placed at serial six. The still fainter ones cannot be viewed without a telescope. Now, with advancement, the stars can be photographed. The list is supplemented to the 21st magnitude of brightness. A star of a certain magnitude of brightness is about two and a half times fainter than a star of the magnitude above it. There are only 22 stars of the first magnitude which is the brightest classification. The brightest star of all is Sirius, which has a magnitude of 1.6. This makes Sirius over 1000 times brighter than the faintest star that we can view with our naked eye.

As we go lower down in magnitude, the number of stars is more in that classification. The number of stars in the faintest magnitude category is about 1,000,000,000, placed at serial 20th.

Related posts:

Why do we have leap years? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, ...
General Knowledge
Do you know "Rajasthan forts were declared as world heritage sites".
Do you know
What is a silicon chip? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 ...
General Knowledge
Which animal is looked after by its father?Complete General Knowledge Question and Answer for Class ...
General Knowledge
What is grafting? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12...
General Knowledge
How did restaurants originate? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, ...
General Knowledge
Do you know “Britain's greatest battle”.
Do you know
Do you know “Crystal lingams of Ranbireshwar temple".
Do you know
GK Question "What Smoke Is?" general knowledge book English 2021 current affairs quiz and answers fo...
General Knowledge
GK Question "Why The Ocean Is Salty?" general knowledge book English 2021 current affairs quiz and a...
General Knowledge
What causes high tides? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 ...
General Knowledge
Do you know “Paper clip helps in surgery”.
Do you know
What is a satellite? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and...
General Knowledge
Do you know “Tagore translations in Lithuanian”.
Do you know
Do you know “Gold throne”.
Do you know
What is a toucan? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12...
General Knowledge
How big were Tyrannosaurus' teeth? Complete General Knowledge Question and Answer for Class 6, 7, 8,...
General Knowledge
What is blood pressure? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 ...
General Knowledge
Which animals care for their young for the longest period? Complete General Knowledge Question and A...
General Knowledge
What is a boll weevil? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...
General Knowledge

About

Leave a Reply

Your email address will not be published. Required fields are marked *

*
*

This site uses Akismet to reduce spam. Learn how your comment data is processed.