File:Starry Night, Laser Light.jpg
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English: Gemini South, one half of the International Gemini Observatory, a Program of NSF’s NOIRLab, is seen here with its laser guide star in action. Both of the Gemini telescopes use laser guide stars to provide data for the calibration of their adaptive optics, systems of deformable mirrors that compensate for fluctuations in the upper atmosphere which can blur the images of distant stars and galaxies. The laser excites trace gas particles high in Earth’s upper atmosphere. Software then analyzes feedback from the laser to provide a model for the adaptive optics to map against. The laser guide stars can also be augmented by additional adaptive optics systems that use imagesof real stars from the telescope itself, such as the Natural Guide Star Next Generation Sensor (NGS-2). This photo was taken as part of the recent NOIRLab 2022 Photo Expedition to all the NOIRLab sites.
аԥсшәа: Gemini Sur, la mitad austral del Observatorio Gemini, un Programa de NOIRLab de NSF, protagoniza esta fotografía junto con su sistema de guía láser en acción. Ambos telescopios Gemini utilizan estrellas guía láser para calibrar sus ópticas adaptativas, que consisten en sistemas de espejos deformables que compensan las fluctuaciones de la atmósfera superior y que pueden distorsionar las imágenes de estrellas y galaxias distantes. El láser estimula las partículas de gas que están en la parte superior de la atmósfera terrestre. Luego, un software analiza la respuesta del láser para proporcionar un modelo con el que la óptica adaptativa puede proveer una imagen sin la distorsión que provoca la atmósfera terrestre. Las estrellas guía láser también pueden aumentarse con sistemas de óptica adaptativa adicionales que utilizan imágenes de estrellas reales creadas por el mismo telescopio, como el Sensor de Próxima Generación de Estrellas Guía Naturales (NGS-2).
Esta fotografía fue tomada como parte de la reciente Expedición Fotográfica de NOIRLab 2022 a todos los sitios de NOIRLab. |
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| Source | https://noirlab.edu/public/images/iotw2223a/?nocache=true |
| Author | International Gemini Observatory/NOIRLab/NSF/AURA/T. Slovinský |
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This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
  This file is licensed under the Creative Commons Attribution 4.0 International license.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 18:20, 22 June 2023 | | 13,000 × 9,199 (26.97 MB) | C messier (talk | contribs) | full size |
| 14:37, 29 March 2023 |  | 1,280 × 906 (252 KB) | Yiseth Romero (talk | contribs) | Uploaded a work by International Gemini Observatory/NOIRLab/NSF/AURA/T. Slovinský from https://noirlab.edu/public/images/iotw2223a/?nocache=true with UploadWizard |
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