Looking at every star in the Milky Way Galaxy individually with a telescope is not feasible due to several reasons:
Vast Number of Stars: The Milky Way Galaxy contains an estimated 100 to 400 billion stars. Even with the most advanced telescopes, it would be impractical to observe each star individually.
Distance and Scale: The stars in the Milky Way are spread across a vast region of space, and many are located at significant distances from Earth. The sheer distances involved make it challenging to observe each star individually.
Interstellar Dust and Gas: Interstellar dust and gas clouds can obscure the view of stars, making it difficult to observe them directly. These clouds can block or scatter the light coming from stars, affecting our ability to study them.
Instrumental Limitations: Telescope instruments have limitations in terms of their field of view, sensitivity, and observing time. These factors restrict the number of stars that can be observed in detail.
Instead of observing individual stars, astronomers use various techniques to study the Milky Way as a whole and gain insights into its structure, composition, and evolution. These techniques include mapping the distribution of stars, measuring their properties in statistical samples, and studying specific regions of interest.
Advanced surveys, such as the Gaia mission launched by the European Space Agency, have been providing comprehensive data about the positions, distances, and motions of millions of stars in the Milky Way. These surveys allow scientists to analyze large-scale patterns and characteristics of stars in our galaxy.
While it's not currently possible to observe every star individually, astronomers continue to make significant progress in studying and understanding the Milky Way through a combination of observational data, computer simulations, and theoretical models.