The Sloan Digital Sky Survey (SDSS) is a major astronomical survey that began in 2000. It aims to map the universe by capturing detailed images and spectra of millions of celestial objects, including galaxies, stars, and quasars. The survey uses a dedicated telescope located at the Apache Point Observatory in New Mexico, USA, and has significantly advanced our understanding of the cosmos. SDSS has produced a vast amount of data, making it one of the most comprehensive astronomical surveys to date. Its findings have contributed to various fields, such as cosmology, galaxy formation, and stellar evolution, providing valuable insights into the structure and history of the universe.