# Articles

## How big is the moon??

On Tuesday we used our pinhole viewers to calculate the approximate diameter of the sun. Lauren, Lizzy and Grace came closest. Mr. Brooks had previously mentioned that when the pinhole viewer is furthest away from the surface the image is projected on, you get a more accurate measurement. It was their group that did have the biggest distance from their pinhole.

You can calculate the approximate diameter of the moon using this calculation:

Diameter of the image of the moon

divided by

The disance from the pinhole to the paper

The answer to this is then

multiplied by

The Distance from the moon to the earth

The approxiamte distance from the moon to the earth is 149,600, 000 kiliometers.

Wait for a full or near full moon, enlist some help, calculate and leave an answer on this post as a comment. In a few weeks time we will reveal the actual distance and who was the closest!!