500
The ship sailed out of the harbor and headed____north.
If you look into____north on a clear night, you will see the North Star.
Key: The ship sailed out of the harbor and headed north.
If you look into the north on a clear night, you will see the North Star.
Do not use an article if a compass direction immediately follows an action verb like go, travel, turn, look, sail, fly, walk, or move.
Use the for compass directions if they follow prepositions like to, in, on, at or from.