Caption: The relationship between the horizontal coordinate system and the equatorial coordinate system illustrated by an applet from NAAP applet: Two Systems: Celestial, Horizon.
Just click on SWITCH to change from one system to the other.
EOF
Left click to rotate the
and the Earth
and the attached
celestial coordinate systems.
The extreme cases for the
horizontal coordinate system
occur for the
North Pole (90° latitude),
equator (0° latitude),
and
South Pole (90° south latitude).
The terms in the applet need some explanation. As you feel the need, click on any of the keywords in Celestial sphere keywords below (local link / general link: celestial_sphere_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: Two Systems: Celestial, Horizon.
Local file: local link: naap_equatorial_horizontal.html.
File: Applet file:
naap_equatorial_horizontal.html.