(Hagerstown, IN)--A local physics professor is talking about some of the specifics of next April’s total solar eclipse.  Wes Tobin from IU East says that Hagerstown will experience the longest eclipse duration at four minutes.  Other areas of Wayne County will see a slightly shorter duration.  During that four minutes beginning at 3:07 in the afternoon, Tobin says, the temperature will drop between ten and 20 degrees, nocturnal animals will become active, and stars and planets will be visible.  The position of the sun in the sky on that day will be similar to where it is this Labor Day.