In antiquity its distinctive shape of three stars was called Deltoton . Triangulum's stars are even fainter than Aries'. R Trianguli is a long-period variable ranging from 5.4 to 12.6 every 266.9 days. In 2000 the maximum should occur around the first or second week of December. The galaxy is estimated to be from 2.5 to 3.5 million light years away.
Low power scopes, or even binoculars, work best.