Caption: Lunar phases illustrated by NAAP applet: Lunar Phase Simulator.
Play with all the buttons to gain insight.
Left click to drag the Moon or
Earth.
EOF
The terms in the applet need some explanation. As you feel the need, click on any of the keywords given in Moon keywords below (local link / general link: moon_keywords.html):
Credit/Permission: ©
Astronomy Education at the University of Nebraska-Lincoln /
Nebraska Astronomy Applet Project (NAAP),
before or circa 2014 /
Non-profit education use permitted.EOF
Applet link:
NAAP applet: Lunar Phase Simulator.
Local file: local link: naap_lunar_phase.html.
File: Applet file:
naap_lunar_phase.html.