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Known as Big Ear, the observatory was part of Ohio State University's Search for Extraterrestrial Intelligence (SETI) project. The telescope was designed by John D. Kraus. Construction of the Big Ear began in 1956 and was completed in 1961, and it was finally turned on for the first time in 1963.
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Feb 17, 2008 · Welcome to the original website of the former Ohio State University Radio Observatory (OSURO), also known as Big Ear. The Observatory was a Kraus-type radio telescope, named for Dr. John D. Kraus, the founder and director of the observatory, who was also the designer and builder of the telescope.
Ever wish you could build an “audio telescope” that would let you hear things that were faint or far away? Well, this article shows you how to build such a thing. We call it the Big Ear. The Big Ear is shown in Figure 1. Its most obvious feature is its parabolic dish reflector. FIGURE 1.
Dec 28, 2002 · The Ohio State Radiotelescope is larger than three football fields in size, and equivalent in sensitivity to a circular dish 175 feet in diameter. The beam of the telescope is elliptical, being 40 minutes of arc in the declination (vertical) direction, and 8 minutes of arc in the right ascension (horizontal) direction.
The antenna consisted of a movable rectangular flat that reflected a selected declination of the southern meridian to a parabolic section, which focused the view to radio horns located underneath the flat. This antenna was equivalent to a dish of 150 (later 175 feet) in diameter.
