Human curiosity! A few centuries ago, due to this curiosity, humans turned their attention to the celestial lights that decorate the night sky and began the study of astronomy. Gradually, the cycle of stardom unfolded. Realizing that the stars do not change position relative to each other during this rising cycle, constellations began to be formed by connecting the surrounding stars with imaginary lines.
In the stars of Mriga Nakshatra, where the Indians imagined a deer wounded by an arrow, the Greeks saw a hunter in the same stars. The speculation behind this was to solve the question of ‘which part of the sky are we looking at, when will the stars be seen in which part’? At present, the entire sky is divided into 88 constellations and the boundaries of each constellation are determined. Actually, constellations are just an idea and different stars in the same constellation are unrelated. It is only because of the same vision that you see them close to each other. Apart from these constellations, there are some groups of stars whose elements appear to be related to each other. Compared to the constellations, these groups are very small in size that we can see. In today’s article, we will learn about such star clusters.
Our galaxy is estimated to have more than 1000 crore stars. A galaxy has a higher number of stars towards its center and a lower number of stars in its spiral arms. Our solar system is located in the Deer-Sagittarius spiral arm and is about 27,000 light-years from the center. The space between the two adjacent spiral arms of the Milky Way has a relatively low density of stars. But there are some places where the star’s density is strongly felt to increase suddenly over the surrounding density. Interestingly, such stations are also found in the spiral arms and up and down from the main galaxy. Areas, where a relatively large number of stars are contained in a small space due to their mutual gravitation, are called star clusters.There are mainly two types of constellations.