Ads
related to: telescope tube material comparison calculator full size videoebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
The idea of replacing the complicated Schmidt corrector plate with an easy-to-manufacture full-aperture spherical meniscus lens (a meniscus corrector shell) to create a wide-field telescope occurred to at least four optical designers in early 1940s war-torn Europe, including Albert Bouwers (1940), Dmitri Dmitrievich Maksutov (1941), K. Penning ...
Telecompressor or focal reducer: Optical element to decrease the telescope's focal length and magnification (usually by a fixed percentage) and widen the field of view, providing opposite effects of a Barlow lens. Star Diagonal: Used to change the angle of the light coming out of a telescope, for easier viewing.
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 ...
Design, size, and mirror comparison between the James Webb Space Telescope and Hubble There is no direct replacement to Hubble as an ultraviolet and visible light space telescope, because near-term space telescopes do not duplicate Hubble's wavelength coverage (near-ultraviolet to near-infrared wavelengths), instead concentrating on the further ...
The main tube of telescopic sights varies in size, material, the applied production process and surface finish. The typical outside diameters vary between 19.05 mm (0.75 in) and 40 mm (1.57 in), although 25.4 mm (1 in), 30 mm and recently 34 mm are by far the most common sizes.
Scale comparison between the primary mirrors of the Hubble Space Telescope, James Webb Space Telescope, and the proposed LUVOIR-B and LUVOIR-A. Selected large telescopes which are in detailed design or pre-construction phases: Large UV Optical Infrared Surveyor (LUVOIR), a proposed space telescope for launch in the mid 2030s.
Comparison of optical telescope primary mirrors: Image title: Comparison of nominal sizes of primary mirrors of notable optical telescopes compared with some other telescopes and objects, by CMG Lee. Dotted lines show mirrors with equivalent light-gathering ability. Thanks to user at 71.41.210.146 for data on holes in mirrors. Width: 100% ...
I know that it's not fair to compare the size of a survey telescope with the 8+ m monsters but 2.5 m is really just a bit larger than the 100" Hooker from 1917! However, I'll leave the issue open. If several other editors show strong support for it, I'll put it in. Cheers, cmɢʟee⎆τaʟκ 00:22, 10 May 2015 (UTC)
Ads
related to: telescope tube material comparison calculator full size videoebay.com has been visited by 1M+ users in the past month