The Kraus-type radio telescope design was created by Dr. John D. Kraus (1910–2004). Kraus-type telescopes are

transit Transit may refer to: Arts and entertainment Film * ''Transit'' (1979 film), a 1979 Israeli film * ''Transit'' (2005 film), a film produced by MTV and Staying-Alive about four people in countries in the world * ''Transit'' (2006 film), a 2006 ...

instruments, where the flat primary mirror reflects radio waves towards the spherical secondary mirror, which focuses it towards a mobile focal carriage. The primary tilts north–south to select any object near the

meridian Meridian or a meridian line (from Latin ''meridies'' via Old French ''meridiane'', meaning “midday”) may refer to Science * Meridian (astronomy), imaginary circle in a plane perpendicular to the planes of the celestial equator and horizon * ...

, while the focal carriage moves east–west along

railroad Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...

ties to track objects near transit.

Examples

The Nançay radio telescope in France and the former Big Ear in Ohio are Kraus-type telescopes, and the southern section of the RATAN-600 ring in Russia can operate as a Kraus-type telescope. Radio telescopes {{Astronomy-stub