SDSS Main Galaxy Sample Dataset: Over 1 Million Galaxies for Cosmological Research

The SDSS main galaxy sample dataset is a publicly available dataset of over one million galaxies observed by the Sloan Digital Sky Survey (SDSS). The dataset includes information such as the position, redshift, and photometry (brightness) of each galaxy, as well as spectroscopic measurements of their light. It also includes various derived quantities, such as estimates of the galaxy's physical size, mass, and star formation rate. The dataset is widely used in cosmological studies, such as probing the large-scale structure of the universe and studying the evolution of galaxies over time.