Sharove clusters are sets of stars linked together by mutual gravity pull. They contain millions of individual stars. As can be seen from the new image, the heart of the ball cluster, such as Terzan 4, is a dense, packed, crowded star field.
The launching of Hubble in 1990 has revolutionized the study of ballrooms. It is almost impossible to distinguish individual objects in the AS from each other by means of ground telescopes. Space Observatorys then come to help. Astronomers have used Hubble's pure vision to study the stars that make up the globes. They also study how such systems change over time.
Scientists observe Terzan 4 and other balloon clusters in order to understand the shape, density, age and structure of the AS near the centre of the Milky Way, which are more difficult to study because of the clouds of gas and dust that revolve around the galaxy core. They eclipse the starlight and complicate astronomical observations.
Astronomers used two sensitive Hubble tools, Advance Camera for Surveyes and Wide Field Camera 3. Combining images of the telescope with complex data processing, scientists have determined the age of galaxy balloon clusters to a billion years, which is a relatively accurate measurement by astronomical measures, and have been noted by the European Space Agency.