Astronomy & Astrophysics 101: Optical Astronomy
Astronomy & Astrophysics 101: Optical Astronomy
Jan 29, 2024
scitechdaily.com
Why do our twin telescopes beam lasers into the sky? To sharpen astronomical images. These lasers create ‘artificial stars’ as part of an innovative technique called adaptive optics, which corrects the blurring caused by Earth’s atmospheric turbulence. Fun fact: AO’s resolution is so fine, you can distinguish between individual headlights on a car in San Francisco from Hawaiʻi! Learn more from our AO ʻwizard’ Peter Wizinowich, Keck Observatory’s expert optical scientist: www.keckobservatory.org/
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Why do our twin telescopes beam lasers into the sky? To sharpen as…
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• 2018 Transit of Mercury • On May 9, 2016, a NASA solar telescope called the Interface Region Imaging Spectrograph, or IRIS, observed Mercury crossing in front of the sun — an astronomical phenomenon known as a Mercury transit. During the transit, IRIS focused on Mercury in order to help calibrate its telescope. By observing the planet — a region that ideally should appear completely dark — the team could determine just how the optics focus incoming light. IRIS can then be recalibrated to accom
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• 2018 Transit of Mercury • On May 9, 2016, a NASA solar telescope call…
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Taking Super Sharp Astronomical Images with Adaptive Optics | ESO FriendsofNASA.org: Turbulence in our atmosphere blurs images of the cosmos, but astronomers have a trick up their sleeve: adaptive optics. Using powerful lasers and fast deformable mirrors we can correct this blurring in real time and obtain extremely sharp astronomical images. In this episode of Chasing Starlight, we show you how this amazing technology works and how it is implemented in our telescopes. Credit: European Southern
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Taking Super Sharp Astronomical Images with Adaptive Optics | ES…
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This laser system foreshadows a new era in ground-based astronomy
This laser system foreshadows a new era in ground-based astronomy
Oct 17, 2022
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