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. Sweatshirt #843006012
Get ready for cooler weather with this classic crew neck sweatshirt. This piece is crafted with pre-shrunk fabric, a 1x1 rib-knit collar with spandex, air-jet spun yarn for softness and reduced pilling, and double-needle stitching around the collar, shoulders, armholes, cuffs, and hem. The garment is quarter-turned to prevent a crease down the middle.
