The Sun revolves once on its own axis roughly every 25 days. This was measured by reference to black sunspots appearing on the Sun's surface. Conversely the moon does not rotate on its axis at all but is held in stationery in its orbit around the earth.
Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Bole(noun) the trunk or stem of a tree, or that which is like it. 2  Bole(noun) an aperture, with a wooden shutter, in the wall of a house, for giving, occasionally, air or light; also, a small closet. 3  Bole(noun) a measure.
A barrel of oil equivalent (BOE) is a term used to summarize the amount of energy that is equivalent to the amount of energy found in a barrel of crude oil. By encompassing different types of energy resources into one figure, analysts, investors and management can assess the total amount of energy the firm can access.