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Part 7: General Astronomy, Miscellaneous
  1. Seasons
  2. Sky Precession
  3. Precession
  4. Proper Motion and Precession
  5. Obliquity of the Ecliptic
  6. Stonehenge
  7. Solstice Azimuth
  8. Solving Kepler's Equation
  9. Eclipse Magnitude and Obscuration
  10. Atmospheric Refraction
  11. Lagrange Points

Part 1: Sun, Moon, Planets, Stars

Part 2: Sun and Moon Graphics

Part 3: Sun Data

Part 4: Moon

Part 5: Clocks

Part 6: Sundials

Seasons

This Java applet computes the times of equinoxes, solstices, perihelion and aphelion.

Sky Precession


Precession

Applet computing the changes in RA and declination due to the precession.

Proper Motion and Precession

Applet computing the changes in RA and declination due to the precession and the proper motion.

Mean and True Obliquity


Solving Kepler's Equation


Solstice Azimuth


Stonehenge


Eclipse Magnitude and Obscuration





Atmospheric Refraction


 

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