Ecliptic
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Sky View Cafe v.3.0.4
Sky View Café is a Java applet that lets you see many types of astronomical information, in both graphical and numerical form.
Primary Direction Explorer v.0.6.2.458 beta
Primary Direction Explorer (aka PDExplorer or simply PDE) is a freeware astroprocessor designed especially for exploring astrological Primary Directions.
Gnomon Model v.1.0
Gnomon shadow simulation to help you with your studies. The EJS Gnomon model simulates the shadow cast by a gnomon (the part of a sundial that casts the shadow) over the course of a day for any day of the year and any latitude on Earth.
Solar and Lunar Eclipse Model v.1.0
Study the occurrences of solar and lunar eclipses with this tool. Solar and Lunar Eclipse Model simulates the occurrences of solar and lunar eclipses. Moon's orbital inclination of 5.
Earth Orbit Model v.1.0
Copernican theory illustration. Earth Orbit model illustrates the Copernican theory of Earth's orbit around the sun. The top window shows a view from outside the celestial sphere.
Equinox Precession Model v.1.0
Equinox Precession Model is a convenient, Java based software designed to illustrate the Copernican theory of Earth's orbit around the sun.EJS Equinox Precession model illustrates the Copernican theory of Earth's orbit around the sun.
Copernican System v.1.0
Analyze the Copernicus' system with this tool. Copernican System model illustrates Copernicus' system of planetary motions. The entire system is centered on the center of Earth's uniform, circular orbit. Sun is placed near, but not at,
Inferior Ptolemaic Model v.1.0
Ptolemy's orbit for a inferior planet simulation to help you with your studies. This simulation illustrates Ptolemy's orbit for a inferior planet. The model consists of a deferent circle,
Superior Ptolemaic Model v.1.0
Illustrate Ptolemy's orbit with Superior Ptolemaic Model. This simulation illustrates Ptolemy's orbit for a superior planet. The model consists of a deferent circle, centered on a point some distance from Earth (at the eccentric point).
EJS Galileo Sunspots Model v.1.0
Study the effect of the sunspots. EJS Galileo Sunspots Model illustrates the motion and changes in appearance of sunspots as they move across the disk of the Sun.