8.611 light years away at the speed of light. You just answered your own question. A light year is a measurement of distance not time. If something is 8.611 light years away it means it will take light 8.611 years to reach Sirius. So the answer is 8.611.
Frontal Lobe. There are four lobes in the cerebral cortex: Frontal, Parietal, Temporal and Occipital. Somatic motor cortex is in Frontal lobe , somatic sensory cortex is in Parietal lobe, auditory cortex is in temporal lobe and visual cortex is in Occipital lobe. Was this helpful? Let the contributor know!
The precentral gyrus, forming the posterior border of the frontal lobe, contains the primary motor cortex, which controls voluntary movements of specific body parts. The frontal lobe contains most of the dopamine-sensitive neurons in the cerebral cortex. The dopamine system is associated with reward, attention, short-term memory tasks, planning, and motivation.