A 59-year-old man has died after his motorcycle struck a moose on Route 2 in Enfield. Officials say Peter Dauphinee of Enfield was killed almost instantly in the Wednesday night accident in a 55-mph zone about three miles north of the Route 155 intersection. Chief Deputy Troy Morton of the Penobscot County Sheriff’s Office says that it was dark at the time and it doesn’t appear that there was anything Dauphinee could have done to avoid the crash. Morton said Dauphinee, who was thrown from his bike, was not wearing a helmet, but it probably would not have made much difference if he had been. The moose was severely injured and was put down.