Sirius is the brightest star in the night sky. So, Why So Sirius? That's taken from the Joker quote in the Batman movie where he says Why so serious? But for astronomers, Sirius is a binary star in the constellation Canis Major. The bright part is a blue-white star 25.4 times as luminous as the Sun. Now that's a serious, star. This funny astronomy science t-shirt makes a great gift for college students, teachers, scientists, and science fans.
Buy this funny movie quote and astronomy science t-shirt here.
This heavy cotton tee has a classic cotton look and feel. Casual elegance will make it an instant favorite in everyone's wardrobe.
.: Classic fit
.: 100% Cotton (fiber content may vary for different colors)
.: Light fabric (5.3 oz/yd² (180 g/m²))
.: Tear away label
.: Runs true to size