Solar X-rays: Geomagnetic Field: |
Current Moon Phase |
The many motions of the moon yield a variety of lunar months. Above, the revolution (sidereal) and phase period (synodic) of the moon are explained. Below, the nodical and anomalistic months are diagramed. The synodic, nodical, and anomalistic months are important in explaining the repetition of solar and lunar eclipses. All graphic by Gary A. Becker... |
And this was a good throw... Seriously, it doesn't happen that often, but occasionally my morning paper gets thrown underneath my car and rolls to an unreachable position. Photo by Gary A. Becker... |