Caption: The Hertzsprung-Russell (HR) diagram illustrated dynamically by an applet from NAAP applet: Hertzsprung-Russell Explorer.
You should play around with the applet
to get a feel for what it is and does. Push all the buttons.
EOF
The terms needed for applet need some explanation. As needed, see Hertzsprung-Russell diagram keywords below (local link / general link: star_hr_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 links:
NAAP applet: Hertzsprung-Russell Diagram Lab;
NAAP applet: Hertzsprung-Russell Explorer.
Local file: local link: naap_hr_diagram.html.
File: Applet file:
naap_hr_diagram.html.