Keck Telescopes laser guide stars
Videonummer 11946364
| Timelapse footage of laser guide stars being fired from the domes of the two Keck Telescopes on Mauna Kea, Hawai'i, USA. A laser guide star is used to help mitigate the effects of a turbulent atmosphere on the telescope's resolving power. Turbulence leads to twinkling and blurring of the images of objects in space. The laser is fired through the same part of the atmosphere and its light causes high-altitude sodium atomse to glow brightly, providing a reference 'star'. By analysing how the light of this reference is distorted, the optical system in the telescope can adapt and compensate for the distortion, allowing much sharper images to be obtained. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Tafreshi, Babak |
| Modell-Rechte: | nicht erforderlich |
| Länge: | 13 Sekunden |
| Seitenverhältnis: | 16:9 |
| Restrictions: | - |
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Keywords
- Amerikanisch,
- Astronomie,
- astronomisch,
- Astrophysik,
- astrophysikalisch,
- Atmosphäre,
- atmosphärisch,
- Berg,
- Dunkel,
- Fernrohr,
- Gelb,
- Hawaii,
- Korrektur,
- Kreuz,
- Kreuzung,
- Kuppel,
- Kuppeln,
- Laser,
- Luft,
- Mauna Kea,
- Nachthimmel,
- Natrium,
- Observatorium,
- optisch,
- Physik,
- physisch,
- Raum,
- sternenklar,
- Strahl,
- Subaru,
- Symmetrie,
- turbulent,
- USA,
- Vereinigte Staaten,
- Wissenschaft,
- Zeitraffer,
- Zwei