Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics Spectra BioPhotonics EuroPhotonics Vision Spectra Photonics Showcase Photonics ProdSpec Photonics Handbook

Building a Better Guide Star, Times Five

Facebook Twitter LinkedIn Email Comments

Wavefront reconstruction of multiple beams improves telescope performance.

Hank Hogan

The nursery rhyme is half correct: Stars are not little, but they do twinkle — thanks to fluctuations in the atmosphere. Consequently, when astronomers peer upward, they get a less-than-perfect image of stars and planets. So they have turned to guide stars and adaptive optics to improve their ability to see. If no suitable natural guide star is present, they generate one using a laser. In this picture, a guide star is created with a laser beam fired upward from the MMT Observatory’s 6.5-m telescope atop Mount Hopkins in Tucson, Ariz. Images courtesy of Gabor Furesz. Now a group from...Read full article

Related content from Photonics Media



    ARTICLES


    PRODUCTS


    PHOTONICS HANDBOOK ARTICLES


    WHITEPAPERS


    WEBINARS


    PHOTONICS DICTIONARY TERMS


    MEDIA


    PHOTONICS BUYERS' GUIDE CATEGORIES


    COMPANIES

    back to top
    Facebook Twitter Instagram LinkedIn YouTube RSS
    ©2020 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, [email protected]

    Photonics Media, Laurin Publishing
    x Subscribe to Photonics Spectra magazine - FREE!
    We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.