 | secondary mirror (or secondary) is the second deflecting or focusing mirror element in a reflecting telescope. Light gathered by the primary mirror is... 3 KB (267 words) - 17:28, 22 January 2024 |
 | Extremely Large Telescope (section Secondary mirror) 39.3-metre-diameter (130-foot) segmented primary mirror and a 4.2 m (14 ft) diameter secondary mirror. The telescope will be supported by adaptive optics... 48 KB (5,148 words) - 17:07, 5 April 2024 |
Mirror". This page and mirror are available over IPv4 and IPv6 and accessible over HTTP, HTTPS and Rsync "Debian worldwide mirror sites". A secondary... 14 KB (1,352 words) - 03:25, 27 February 2024 |
 | of the primary mirrors have been cast, the first of seven adaptive secondary mirrors are underway, and manufacturing of the telescope mount is underway... 37 KB (3,709 words) - 10:56, 20 March 2024 |
 | directly at the vertex of the secondary mirror, then the Schmidt plate would lie on top of the paraboloid secondary mirror. Therefore, the Schmidt plate... 12 KB (1,370 words) - 04:14, 13 November 2023 |
 | Reflecting telescope (section Three-mirror anastigmat) designs have a secondary mirror, film holder, or detector near that focal point partially obstructing the light from reaching the primary mirror. Not only... 33 KB (3,918 words) - 14:11, 4 March 2024 |
 | Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas, the... 14 KB (1,872 words) - 12:26, 16 March 2024 |
 | A mirror, also known as a looking glass, is an object that reflects an image. Light that bounces off a mirror will show an image of whatever is in front... 112 KB (12,841 words) - 19:03, 8 May 2024 |
 | Telescope: Secondary Mirror Deployment – Mission Control Live SECONDARY MIRROR (087:15; 05 Jan 2022) ⇒ James Webb Space Telescope: Primary Mirror Deployment... 210 KB (19,485 words) - 06:09, 11 May 2024 |
 | the Cassegrain telescope that has a hyperbolic primary mirror and a hyperbolic secondary mirror designed to eliminate off-axis optical errors (coma). The... 16 KB (2,133 words) - 20:50, 30 October 2023 |