File:Hubble Space Telescope's Internal Components (Light Path) (4520).jpg
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[edit]DescriptionHubble Space Telescope's Internal Components (Light Path) (4520).jpg |
English: This diagram shows the path that light from the universe travels when it enters the Hubble Space Telescope. Hubble’s 1,825 pound, 7.8-foot (2.4-meter) diameter primary mirror collects light from its astronomical target and reflects it to a 12-inch (0.3-meter) diameter secondary mirror located in the optical tube. This secondary mirror then reflects the light through a hole in the primary mirror to form an image at the telescope’s focal plane. There it is intercepted by pick-off mirrors that pass it into the scientific instruments. Hubble’s mirrors are made of ultra-low expansion glass kept at a “room temperature” of about 70°F (21°C) to avoid warping. The reflecting surfaces are coated with a 3/1,000,000-inch layer of pure aluminum and protected by a 1/1,000,000-inch layer of magnesium fluoride that also makes the mirror more reflective to ultraviolet light. |
Date | 6 June 2019, 20:30:00 (upload date) |
Source | Hubble Space Telescope's Internal Components (Light Path) |
Author | NASA and STScI |
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[edit]Public domainPublic domainfalsefalse |
This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:32, 26 August 2023 | 2,400 × 1,200 (190 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://stsci-opo.org/STScI-01EVSVFHGE367KKXMQETP59YTK.jpg via Commons:Spacemedia |
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Software used | Adobe Photoshop CC 2019 (Macintosh) |
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Unique ID of original document | xmp.did:291455ee-2a33-4b77-ba74-f0fb5e19d7fe |