File:Red Lights, Blue Lights.jpg
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English: The bright stars of the constellation Orion blaze in blue over Kitt Peak National Observatory (KPNO), a Program of NSF’s NOIRLab, in this image. They shine in stark contrast to the red lights lining the road approaching the observatory. The use of red lights might give this image a slightly otherworldly appearance, but they serve an important purpose: preserving the night vision of on-site staff and visitors. Redlight preserves night vision better than other colors but is still bright enough to allow people to see what they are doing in a dark environment. It also interferes less with observing runs compared to blue or white light. The red lights look bright in this image, but that’s a result of the longexposure time used to capture the night sky. If you were at KPNO in person, the red lights would look far dimmer. In between the blue lights of the sky and the red lights of the ground, the McMath-Pierce Solar Telescope can be seen on the horizon.
Español: En esta imagen, las estrellas de la constelación de Orión brillan en tonos azules sobre el Observatorio Nacional Kitt Peak (KPNO), un Programa de NOIRLab de NSF. Su brillo contrasta con las luces rojas que bordean la carretera que llega al observatorio. Las luces rojas parecen dar a esta imagen un aspecto ligeramente sobrenatural, pero tienen un propósito importante: Preservar la visión nocturna del personal y los visitantes del sitio. La luz roja preserva la visión nocturna mejor que otros colores, pero tiene el brillo suficiente para que las personas puedan ver en un entorno oscuro. Además, en comparación con la luz azul o blanca, la luz roja causa menos interferencia en las observaciones. Las luces rojas se ven brillantes en esta imagen, pero esto se debe al largo tiempo de exposición utilizado para capturar el cielo nocturno. Si estuvieras en KPNO en persona, las luces rojas se verían mucho más tenues. Entre las luces azules del cielo y las rojas del suelo, se puede ver el Telescopio Solar McMath-Pierce en el horizonte. |
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| Source | https://noirlab.edu/public/images/iotw2211a/ |
| Author | KPNO/NOIRLab/NSF/AURA/B. Tafreshi |
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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 | 18:03, 22 June 2023 | | 5,913 × 3,941 (4.42 MB) | C messier (talk | contribs) | full size |
| 21:03, 30 January 2023 |  | 1,280 × 853 (170 KB) | Yiseth Romero (talk | contribs) | Uploaded a work by KPNO/NOIRLab/NSF/AURA/B. Tafreshi from https://noirlab.edu/public/images/iotw2211a/ with UploadWizard |
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