Convert ligne (Paris line) to light day
Selected category: length.
Definition and details for ligne (Paris line):
Paris line is a traditional unit of length equal to 1/12 of a Paris inch (pouce du Roi) or about 2.256 mm. Ligne is still used by French and Swiss wristwatch makers to measure the size of a watch movement.
Definition and details for light day:
Light day is defined as the distance the light travels in one day through a vacuum. The defined light speed is c = 299,792,458 m/sec. So one light day equals to about 25.902 billion kilometers.