522 adaptive astronomical astronomicalinstruments astronomicalphotography astronomy astrophysics atmosphericturbulence beamoptics ccdcameras computernetworkresources congresses databases dataprocessing designandconstruction galaxies imageintensifiers imagingsystems informationstorageandretrievalsystems instruments interferometry observations optics optoelectronicdevices photonics physicalgeography physics planets plasma(ionizedgases) quantumtheory real-timedataprocessing refraction remotesensing research spaceastronomy spaceoptics spacesurveillance technique telescopes