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- Laser_guide_star abstract "Laser guide star is an artificial star image created for use in astronomical adaptive optics imaging.Adaptive optics (AO) systems require a wavefront reference source in order to correct atmospheric distortion of light (called astronomical seeing). Sufficiently bright stars are not available in all parts of the sky, which greatly limits the usefulness of natural guide star adaptive optics. Instead, one can create an artificial guide star by shining a laser into the atmosphere. This star can be positioned anywhere the telescope desires to point, opening up much greater amounts of the sky to adaptive optics. Because the laser beam is deflected by astronomical seeing on the way up, the returning laser light does not move around in the sky as astronomical sources do. In order to keep astronomical images steady, a natural star nearby in the sky must be monitored in order that the motion of the laser guide star can be subtracted using a tip–tilt mirror. However, this star can be much fainter than is required for natural guide star adaptive optics because it is used to measure only tip and tilt, and all higher-order distortions are measured with the laser guide star. This means that many more stars are suitable, and a correspondingly larger fraction of the sky is accessible.".
- Laser_guide_star thumbnail Potw1149a_gecko.jpg?width=300.
- Laser_guide_star wikiPageExternalLink ann11039.
- Laser_guide_star wikiPageExternalLink esocast34a.
- Laser_guide_star wikiPageExternalLink index.php?option=content&task=view&id=226.
- Laser_guide_star wikiPageID "792946".
- Laser_guide_star wikiPageLength "11524".
- Laser_guide_star wikiPageOutDegree "41".
- Laser_guide_star wikiPageRevisionID "693887937".
- Laser_guide_star wikiPageWikiLink Adaptive_optics.
- Laser_guide_star wikiPageWikiLink Astronomical_seeing.
- Laser_guide_star wikiPageWikiLink Astronomy.
- Laser_guide_star wikiPageWikiLink Atmosphere.
- Laser_guide_star wikiPageWikiLink California.
- Laser_guide_star wikiPageWikiLink Category:Astronomical_imaging.
- Laser_guide_star wikiPageWikiLink Category:Laser_applications.
- Laser_guide_star wikiPageWikiLink Dye_laser.
- Laser_guide_star wikiPageWikiLink European_Southern_Observatory.
- Laser_guide_star wikiPageWikiLink Gemini_Observatory.
- Laser_guide_star wikiPageWikiLink Gran_Telescopio_Canarias.
- Laser_guide_star wikiPageWikiLink Guide_star.
- Laser_guide_star wikiPageWikiLink Hawaii.
- Laser_guide_star wikiPageWikiLink Large_Binocular_Telescope.
- Laser_guide_star wikiPageWikiLink Laser.
- Laser_guide_star wikiPageWikiLink Lick_Observatory.
- Laser_guide_star wikiPageWikiLink Mesosphere.
- Laser_guide_star wikiPageWikiLink Nanometre.
- Laser_guide_star wikiPageWikiLink Optics.
- Laser_guide_star wikiPageWikiLink Palomar_Observatory.
- Laser_guide_star wikiPageWikiLink Paranal_Observatory.
- Laser_guide_star wikiPageWikiLink Peer_review.
- Laser_guide_star wikiPageWikiLink Rayleigh_scattering.
- Laser_guide_star wikiPageWikiLink Sodium.
- Laser_guide_star wikiPageWikiLink Star.
- Laser_guide_star wikiPageWikiLink Street_light.
- Laser_guide_star wikiPageWikiLink Telescope.
- Laser_guide_star wikiPageWikiLink Tunable_laser.
- Laser_guide_star wikiPageWikiLink Very_Large_Telescope.
- Laser_guide_star wikiPageWikiLink W._M._Keck_Observatory.
- Laser_guide_star wikiPageWikiLink Wavefront.
- Laser_guide_star wikiPageWikiLink William_Herschel_Telescope.
- Laser_guide_star wikiPageWikiLink File:Laser_Meets_Lightning.jpg.
- Laser_guide_star wikiPageWikiLink File:Potw1149a_gecko.jpg.
- Laser_guide_star wikiPageWikiLinkText "LGS".
- Laser_guide_star wikiPageWikiLinkText "Laser Guide Star".
- Laser_guide_star wikiPageWikiLinkText "Laser guide star".
- Laser_guide_star wikiPageWikiLinkText "guide star laser".
- Laser_guide_star wikiPageWikiLinkText "guide-star".
- Laser_guide_star wikiPageWikiLinkText "laser guide star (LGS)".
- Laser_guide_star wikiPageWikiLinkText "laser guide star".
- Laser_guide_star wikiPageWikiLinkText "laser-guide-star".
- Laser_guide_star align "right".
- Laser_guide_star caption "One of the launch telescopes for the VLT Four Laser Guide Star Facility.".
- Laser_guide_star caption "The first 22-watt TOPTICA sodium laser of the Adaptive Optics Facility".
- Laser_guide_star direction "vertical".
- Laser_guide_star image "One of the launch telescopes for the VLT Four Laser Guide Star Facility.jpg".
- Laser_guide_star image "The first 22-watt sodium laser of the Adaptive Optics Facility.jpg".
- Laser_guide_star width "195".
- Laser_guide_star wikiPageUsesTemplate Template:Commons_category.
- Laser_guide_star wikiPageUsesTemplate Template:Multiple_image.
- Laser_guide_star wikiPageUsesTemplate Template:Reflist.
- Laser_guide_star subject Category:Astronomical_imaging.
- Laser_guide_star subject Category:Laser_applications.
- Laser_guide_star hypernym Image.
- Laser_guide_star type Work.
- Laser_guide_star type Application.
- Laser_guide_star type Laser.
- Laser_guide_star comment "Laser guide star is an artificial star image created for use in astronomical adaptive optics imaging.Adaptive optics (AO) systems require a wavefront reference source in order to correct atmospheric distortion of light (called astronomical seeing). Sufficiently bright stars are not available in all parts of the sky, which greatly limits the usefulness of natural guide star adaptive optics. Instead, one can create an artificial guide star by shining a laser into the atmosphere.".
- Laser_guide_star label "Laser guide star".
- Laser_guide_star sameAs Q901458.
- Laser_guide_star sameAs نجمة_دليل_الليزر.
- Laser_guide_star sameAs Künstlicher_Leitstern.
- Laser_guide_star sameAs Étoile_guide_laser.
- Laser_guide_star sameAs Lézercsillag.
- Laser_guide_star sameAs レーザーガイド星.
- Laser_guide_star sameAs Kënschtleche_Leetstär.
- Laser_guide_star sameAs m.03ch_8.
- Laser_guide_star sameAs Laserguidestjärna.
- Laser_guide_star sameAs Q901458.
- Laser_guide_star sameAs 雷射導引星.
- Laser_guide_star wasDerivedFrom Laser_guide_star?oldid=693887937.
- Laser_guide_star depiction Potw1149a_gecko.jpg.
- Laser_guide_star isPrimaryTopicOf Laser_guide_star.