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  2. 40-foot radio telescope - Wikipedia

    en.wikipedia.org/wiki/40-foot_radio_telescope

    The radio telescope has a diameter of 40 feet (12 m) [1] in the form of a parabolic reflector. The surface is made of steel mesh, with a superstructure of galvanised steel. [2] It is a transit telescope: [3]: 2 it only moves in elevation, not in azimuth (horizontally), [1] and relies on the Earth's rotation to observe the full sky. [3]

  3. Wide Field Camera 3 - Wikipedia

    en.wikipedia.org/wiki/Wide_Field_Camera_3

    The Wide Field Camera 3 (WFC3) is the Hubble Space Telescope's last and most technologically advanced instrument to take images in the visible spectrum. It was installed as a replacement for the Wide Field and Planetary Camera 2 during the first spacewalk of Space Shuttle mission STS-125 (Hubble Space Telescope Servicing Mission 4) on May 14 ...

  4. Optical telescope - Wikipedia

    en.wikipedia.org/wiki/Optical_telescope

    The Large Binocular Telescope at the Mount Graham International Observatory in Arizona uses two curved mirrors to gather light. An optical telescope gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual inspection, to make a photograph, or to collect data through electronic image sensors.

  5. List of largest optical refracting telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_optical...

    The Swedish 1-m Solar Telescope, with a lens diameter of 43 inches, is technically the largest, with 39 inches clear for the aperture.The second largest refracting telescope in the world is the Yerkes Observatory 40 inch (102 cm) refractor, used for astronomical and scientific observation for over a century.

  6. Meade LX200 - Wikipedia

    en.wikipedia.org/wiki/Meade_LX200

    Software and optical encoders corrected for errors, and the telescope also came with auto-guiding CCD and planetarium software. [ 2 ] A related series introduced in 2005 was the even higher end RCX400 (later renamed LX400-ACF), with new optics and a motorized focus/collimation system, and with upgraded fork mount electronics. [ 4 ]

  7. Extremely large telescope - Wikipedia

    en.wikipedia.org/wiki/Extremely_large_telescope

    Comparison of nominal sizes of apertures of the above extremely large telescopes and some notable optical telescopes. An extremely large telescope (ELT) is an astronomical observatory featuring an optical telescope with an aperture for its primary mirror from 20 metres up to 100 metres across, [1] [2] when discussing reflecting telescopes of optical wavelengths including ultraviolet (UV ...

  8. 3.67 m Advanced Electro Optical System Telescope - Wikipedia

    en.wikipedia.org/wiki/3.67_m_Advanced_Electro...

    The telescope is part of the Maui Space Surveillance Complex (MSSC), which in turn is part of the Air Force Maui Optical and Supercomputing Site (AMOS). The 3.67-meter telescope, known as the Advanced Electro-Optical System (AEOS), owned by the Department of Defense, is the United States' largest optical telescope designed for tracking satellites.

  9. Telescope - Wikipedia

    en.wikipedia.org/wiki/Telescope

    The 100-inch (2.54 m) Hooker reflecting telescope at Mount Wilson Observatory near Los Angeles, USA, used by Edwin Hubble to measure galaxy redshifts and discover the general expansion of the universe. A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. [1]