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Script for 'The Night Sky in April', 1955-04

Reference Code: GBR/0180/RGO 45/297

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


Conditions Governing Access

From the Management Group:

Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (


4 page(s)

Language of Materials


Finding aid date

2007-04-13 12:41:04+00:00

Includes index.

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
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Cambridge CB3 9DR United Kingdom