4C Array
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The 4C Array is a cylindrical paraboloid radio telescope at the Mullard Radio Astronomy Observatory, near Cambridge, England. It is similar in design to the Molonglo Observatory Synthesis Telescope. It is 450 m long, 20 m wide, with a second, moveable element (now mostly removed; some of it is still visible, beyond COAST).[citation needed] The first large aperture synthesis telescope (1958), it was also the first new instrument to be built at Lord's Bridge, after the Observatory was moved there in 1957, and needed 64 km (40 mi) of reflector wire (since removed).[citation needed] The 4C operated at 178 MHz (1.7 m), and located nearly 5000 sources of the 4C (4th Cambridge) catalogue published in 1965 and 1966, which helped establish the evolution of the radio galaxy population of the universe.[1] The telescope is now inoperable.[2]
It is flanked to the northwest by the Cosmic Anisotropy Telescope enclosure and to the south by the One-Mile and Half-Mile Telescopes.[citation needed]
References
- ^ Page Module:Citation/CS1/styles.css has no content.Longair, Malcolm. "A Brief History of Radio Astronomy in Cambridge".
- ^ Page Module:Citation/CS1/styles.css has no content."Report - - The 4C Array radio telescope – Mullard Observatory – Cambridge – August 2019 | Other Sites". 28DaysLater Urban Exploring Forums. 11 September 2019. Retrieved 13 November 2025.
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