Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Lambda Velorum is a star in the constellation Vela. It has the traditional name Suhail. Lambda Velorum is a supergiant or bright giant star of spectral class K5. Supergiant stars use up their hydrogen "fuel" much faster than do smaller stars and Velorum is estimated to be only some 27 million years old. It is classified as an irregular variable star and its brightness varies from magnitude +2.14 to +2.30.