Aster was a French manufacturer of automobile parts based at St. Denis in Paris.
For a period they also had manufacturing capabilities in Wembley, UK, as Aster Engineering Co
From 1900 to 1910 the company produced chassis, though it is not known if they built complete cars. The firm whose full name was Ateliers de Construction Mecanique l'Aster from St. Denis (Seine) exhibited a four-cylinder chassis at the 1907 Paris Salon.
Sources of Information
-  Wikipedia