Answer:
The overall sky a Bellingham observer would see is about 75-100% over the period of 1 year.
Explanation:
Due to following factors, the overall sky visibility will fall in this range.
- The location of Bellingham on Earth is in the Northern hemisphere over the equator.
- The tilt of the earth cannot allow the visibility of the complete sky.
- The light pollution and aerosol concentrations has reduced the sky visibility at night.