Script for 'The Night Sky in January', 1957-01
Scope and Contents
An annotated copy of Porter's script for 'The Night Sky in January' on the comet discovered in November 1956, predicted to be a naked eye object by the spring; Venus drawing near the Sun in the morning sky, Jupiter to be the brightest planet, Mars fading in the early evening, and Saturn coming into view in the morning; International Geophysical Year; Robert Hooke observing that Gamma Arietis was a double star in 1664; other easily observable double stars: Polaris, Alcor and Mizar, Castor, and Gemini; Canis Minor, Procyon and Sirius; the discovery of 800 double stars by William Herschel and the 30,000 known today; the proof that double stars are in fact physically linked and not just line of sight phenomena, eclipsing variables, spectroscopic binaries and the tidal forces in very close binaries; multiple stars, such as Castor and Proxima Centauri; and the similarities and dissimilarities of binaries, such as Procyon and Sirius.
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Language of Materials
Finding aid date
- From the Series: Porter, John Guy, 1900 - 1981 (astronomer) (Person)
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