|30th of May 2015|
|Solar radiometer at Potts Hill|
|This shows a 1-m diameter equatorially-mounted,
motor-driven parabolic antenna at the Potts Hill field station first built to
observe the 1948 November 1 partial solar eclipse at 10cm. In front of the
prime focus of the antenna is a 0.25 wavelength plate used to convert linear
polarised waves to circularly polarized. This antenna has a beamwidth of 6
degrees. - (Image caption provided by Wayne Orchiston, Miller Goss and
Jessica Chapman.) |
Piddington, J.H., Hindman, J.V. 1949, Australian Journal of Scientific Research 2(4), 524 - 538: "Solar Radiation at a Wavelength of 10 Centimetres including Eclipse Observations"
Image Credit: CSIRO Radio Astronomy Image Archive.