File:Like Painting with Light.jpg
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English: Gemini North, one half of the international Gemini Observatory, a Program of NSF’s NOIRLab, uses a laser beam traveling through Earth’s atmosphere to adjust its adaptive optics. Like many large research telescopes today, Gemini North uses adaptive optics — bending its mirrors to compensate for atmospheric turbulence or “seeing”, which can blur the images of distant objects like stars and galaxies. The laser beam, seen here as a pink-orange stripe on the sky, travels into the upper atmosphere where it creates a bright spot of light that provides a reference point for the telescope to follow, and correct for, the atmospheric turbulence. This long-exposure photograph shows the laser tracking its target near the zenith, appearing to paint the sky with light. The stars appear as trails as they revolve around the north celestial pole during the long exposure.
Español: Gemini Norte, uno de los telescopios del Observatorio Gemini, un Programa de NOIRLab de NSF, utiliza un láser que se propaga a través de la atmósfera terrestre para ajustar su óptica adaptativa. Al igual que muchos de los grandes telescopios de investigación actuales, Gemini Norte utiliza la óptica adaptativa, mediante espejos deformables, para compensar las turbulencias atmosféricas o el “seeing”, que causan que las imágenes de objetos lejanos como estrellas y galaxias se vean borrosas. Este láser, que aquí se ve como una franja de color rosa-anaranjado en el cielo, viaja hacia la parte superior de la atmósfera creando un punto de luz brillante que proporciona un punto de referencia para que el telescopio pueda determinar y corregir las turbulencias atmosféricas. Esta fotografía de larga exposición muestra al láser siguiendo su objetivo cerca del cenit, como si estuviera “pintando” el cielo con luz. Durante la larga exposición fotográfica, las estrellas aparecen como estelas mientras giran alrededor del polo norte celeste. |
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| Source | https://noirlab.edu/public/images/iotw2217a/ |
| Author | International Gemini Observatory/NOIRLab/NSF/AURA/J. Chu |
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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 | |
|---|---|---|---|---|---|
| current | 18:09, 22 June 2023 | | 4,891 × 3,264 (5.52 MB) | C messier (talk | contribs) | full size |
| 19:08, 28 March 2023 |  | 1,280 × 854 (298 KB) | Yiseth Romero (talk | contribs) | Uploaded a work by International Gemini Observatory/NOIRLab/NSF/AURA/J. Chu from https://noirlab.edu/public/images/iotw2217a/ with UploadWizard |
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