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Algol, or Beta Persei, is a representative eclipsing binary system. The film presents the properties of Algol and the methods used by astronomers to infer the physical characteristics of this star system. At...
The relationship between motion, both radial and transverse, and resulting changes in apparent wavelength is illustrated for sound and light. The use of the Doppler effect in astronomy is indicated. Teaching...
Designed to help the student develop an intuitive feel for the full range of possible orbits of gravitationally attracting bodies by showing the motion, bound and unbound, under various initial conditions.
Illustrates the proper motion of stars in various sky regions by simulating the observed motion with a time rate of 7200 years per second. The parallactic motion of Aldebaran and Vega is shown with high...
Uses an exact computer model of the solar system to show the orbits of the planets. Zoom transitions are used to show scale, and Kepler’s laws are illustrated.
Sirius is located in the sky, and the wavy proper motion of Sirius A reveals the presence of an invisible companion. Upon closer examination, Sirius B is observed and found to be a white dwarf star. Teaching...
Proper motion of the Pleiades and the Hyades is shown, and the convergence of the Hyades cluster is clearly apparent. Open clusters are contrasted in structure and distribution with globular clusters. A...
Shows some of the dynamic characteristics of this multiple star system located about 26 light-years from the sun. A zoom-in reveals a visual binary. After showing the primary and companion moving in orbit....
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