angular resolution
41Astronomical interferometer — An astronomical interferometer is an array of telescopes or mirror segments acting together to probe structures with higher resolution. Astronomical interferometers are widely used for optical astronomy, infrared astronomy, submillimetre… …
42Astronomical optical interferometry — One of the first astronomical interferometers was built on the Mount Wilson Observatory s reflector telescope in 1920 in order to measure the diameters of stars. The red giant star Betelgeuse was among the first to have its diameter determined in …
43Open-pool Australian lightwater reactor — For other uses, see Opal (disambiguation). Science with Neutrons Foundations Neutron temperature Flux  …
44Chandra X-ray Observatory — and Inertial Upper Stage sit inside the payload bay on Space Shuttle Columbia mission STS 93 General information …
45Radar sensor — Radio detection and ranging (radar) is used to sense angle, range and velocity of (moving) scatterers in the environment [Skolnik, M. I.: Introduction to Radar Systems, 3rd Ed. . McGraw Hill, 2005] [Stimson, G. W.: Introduction to Airborne Radar …
46Graph drawing — This article is about the general subject of graph drawing. For the annual research symposium, see International Symposium on Graph Drawing. Graphic representation of a minute fraction of the WWW, demonstrating hyperlinks. Graph drawing is an… …
47Airy disk — Computer generated image of an Airy disk. The gray scale intensities have been adjusted to enhance the brightness of the outer rings of the Airy pattern …
48Granat — Infobox Space telescope name = International Astrophysical Observatory GRANAT caption = picture credit: NASA organization = Soviet space program major contractors = NPO Lavochkin alt names = nssdc id =… …
49Binaire à occultation — Double à occultation Mesure d occultation d une étoile double Une étoile double à occultation est une étoile binaire dont les deux composantes sont successivement occultées par la Lune (ou un autre corps du système solaire) lors du mouvement… …
50Double a occultation — Double à occultation Mesure d occultation d une étoile double Une étoile double à occultation est une étoile binaire dont les deux composantes sont successivement occultées par la Lune (ou un autre corps du système solaire) lors du mouvement… …
