It was a beautiful morning. The class started not too long after sunrise.
Mt. Rubidoux was there, to the north...
...and the valley to the west.
So, where are we on the map?
We can triangulate by matching several landmarks up to points on the map.
We can use the pointy hill to the west...
...the mountain peak to the north...
...and Pachappa Hill in the south.
Mary triagulates with map, compass, pencil, ruler...
...as does Linda...
...and we all see that the human eye is far keener than the tools.
This church shows up on the map.
The shadow was right here just a few minutes ago.
It falls a little east of
North, so it's a little past noon.
Using the 45-45-90 triangle to pace out a distance you can't directly measure.
Soon, we'll be First Class Scouts!
Fold a triangle out of paper to make the bearings easier to figure.
We talked about the moon in a waxing crescent, handy for finding directions.
That evening...
...wait 'til the cloud passes...
Draw a line through the points, and that's a north-south direction.
MORE info in the HAT Astronomy class!
