What is 724 star?

As an AI language model, I do not have access to specific information related to a particular 724 star. However, generally speaking, stars are massive, luminous, and celestial objects that emit light and heat due to the process of nuclear fusion. They exist in various sizes, colors, and stages of their life cycles, and they have important roles in the formation of galaxies, planetary systems, and life as we know it. Astronomers use various techniques like spectroscopy, photometry, and astrometry to study stars and learn about their properties, compositions, and behaviors.