Jul 31
Go outside on a dark, moonless night. Look up. Is it December or January? Check out Betegeuse, glowing dully red at Orion’s shoulder, and Rigel, a laser blue at his knee. A month later, yellow Capella rides high in Auriga. Is it July? Find Vega, a sapphire in Lyra, or Antares, the orange-red heart of Scorpius.