latitudes and longitudes

123456
Across
  1. 1. at 0° latitude (7 letters)
  2. 4. lines meet at the poles (9 letters)
  3. 5. tool used to find directions (7 letters)
  4. 6. north or south of the Equator (8 letters)
Down
  1. 2. lines that run from east to west (9 letters)
  2. 3. east or west of the Prime Meridian (9 letters)
  3. 4. line at 0° longitude (7 letters)