Script for 'The Night Sky in April', 1955-04
Scope and Contents
An annotated copy of Porter's script for 'The Night Sky in April' on the astronomers of the past and the discovery of the rings and satellites of Saturn; Leo, Spica in Virgo with Saturn to the east, and the appearance of Saturn in a telescope; the quality of early telescopes, such as those of Galileo and Huygens; Huygens's telescope, his observation of Saturn and discovery of Titan, the largest moon of Saturn, Cassini discovering four moons and Herschel discovering two more; the arrangement of the orbits of these satellites, Iapetus in captured rotation and Phoebe in retrograde revolution; and Huygens on space travel.
- Creation: 1955-04
- From the Series: Porter, John Guy, 1900 - 1981 (astronomer) (Person)
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