Mystery Class: How does the Longitude Clue Work?

The Longitude Clue
Why does it only work on the equinox?

Study the images from space on the next four pages taken on the same date in December, January, February and March. Each image shows the dividing line between daylight and darkness.

What changes do you notice from month to month?

What do you wonder?

Let's
Explore! >>

The Living Earth® image is a composite of Earth satellite imagery developed by The Living Earth, Inc.
From: The Earth and Moon Viewer

Copyright 2007Journey North. All Rights Reserved.
Please send all questions, comments, and suggestions to our feedback form.

The Longitude Clue Why does it only work on the equinox?
Study the images from space on the next four pages taken on the same date in December, January, February and March. Each image shows the dividing line between daylight and darkness. What changes do you notice from month to month? What do you wonder?	Let's Explore! >>

The Living Earth® image is a composite of Earth satellite imagery developed by The Living Earth, Inc. From: The Earth and Moon Viewer Copyright 2007Journey North. All Rights Reserved. Please send all questions, comments, and suggestions to our feedback form.