Thomas W. N. (T) W. N. (D)

Thomas W. N. (T) W. N. (D) is a notation used in physics and astronomy to specify the orientation or position of an astronomical object or instrument. "W. N." likely stands for "West Longitude" and "North," indicating geographic or celestial coordinates. The initials "T" and "D" may denote specific parameters such as "Time" (T) and "Distance" (D) or other relevant variables. Overall, this notation provides a precise way to describe an object's location and orientation in space or on a celestial map, ensuring clarity for scientific communication.