Porter, John Guy, 1900 - 1981 (astronomer)
Found in 8 Collections and/or Records:
Audio recording of an excerpt from the BBC Radio broadcast 'The Sky at Night' in which Porter gives a live commentary on a total eclipse of the sun at Stromstad in Sweden on 30 June 1954; duration: 4 minutes (approx.). Also, photocopy of a related typescript in which Porter gives some background information about his broadcast.
Notes regarding computations for the Sun and planets for 1960-1980, made mainly by D.H. Sadler and J.G. Porter in 1954.
Notes by J.G. Porter and others regarding mean elements of the planets.
Miscellaneous notes by D.H. Sadler and J.G. Porter on smoothing.
Notes, tables and other papers of D.H. Sadler and J.G. Porter regarding the calculation of apparent places of stars, including some printed material.
A folder regarding the basis of solar ephemeris, especially the comparison between 'Astronomical Ephemeris'/'Nautical Almanac' values from Newcomb's tables and A.P.A.E., Vol. XIV. There are also various other papers relating to 'Sun from Newcomb' work carried out by D.H. Sadler, E. Smith and J.G. Porter, dating mainly from the 1950s.