Educational infographic of the HertzsprungRussell diagram, showing stellar luminosity class as a main focused topic (Yerkes Spectral Type), and spectral classification. Useful for astronomy study, astrophysics teaching, and scientific visualization. Tank Top #843006012
This must-have unisex jersey tank top has a modern fit, with a rounded neckline and crafted with superior combed and ring-spun cotton for an optimal printing surface. It comes in solid colors of 100% combed and ring-spun cotton, and Triblend colors that are 50% polyester, 25% combed and ring-spun cotton, and 25% rayon.