How wonderful it is to watch the sky after sunset! The whole sky is filled with tiny shining objects- some are bright, others are dim. It seems as if the sky is studded with diamonds. They all appear to be twinkling, but if you look at them carefully you will notice some of them do not twinkle as others do. They simply do not flicker just as the moon shines. Along with these bright objects, you may also see the moon on most the days. it may, however, appear at different times, in different shapes, and at different positions. You can see the full moon only about a month’s time. It is Full moon night. A fortnight later, you cannot see it at all. It is a New moon night. On this day, you can watch the night sky best, provided it is a clear night. Do you wonder why we can't see the moon and all those bright tiny objects during the daytime? It is because the very bright light of the sun does not allow us to see all these bright objects of the night sky.
The sun, the moon, and all those objects shining in the night sky are called celestial bodies. Some celestial bodies are very big and hot. They are made up of gases. They have their own heat and light, which they emit in large amounts. These celestial bodies are called stars. The sun is a star. Countless twinkling stars in the night sky are similar to the sun. But we do not feel their heat or light, and they look so tiny because they are very very far from us. You must have noticed that all objects look smaller when seen from a distance. How small an airplane looks when it is flying at a great height! While watching the night sky, you may notice various patterns formed by different groups of stars. These are called constellations. Ursa Major or Big Bear is one such constellation. In ancient times, people used to determine directions during the night with the help of stars. The North star indicates the north direction. It is also called the Pole Star. It is difficult to imagine how big the universe is. Scientists are still trying to find out more and more about it. We are not certain about its size but we know that all of us – you and I belong to this universe.
Written by Kaavya Bhardwaj, Shresta Singh, and Nia Shukla
very nice blog