the measurement of a stellar image
81Solar System — This article is about the Sun and its planetary system. For other systems, see planetary system and star system. For a list of physical and orbital statistics for the Solar System s largest bodies, see List of gravitationally rounded objects of… …
82Scientific method — …
83Pleiades — This article is about the star cluster. For other uses, see Pleiades (disambiguation). Pleiades A color composite image of the Pleiades from the Digitized Sky Survey. Credit: NASA/ESA/AURA/Caltech …
84Astronomical seeing — Schematic diagram illustrating how optical wavefronts from a distant star may be perturbed by a layer of turbulent mixing in the atmosphere. The vertical scale of the wavefronts plotted is highly exaggerated. Astronomical seeing refers to the… …
85List of Solar System objects by size — Objects in the Solar System By orbit By size By discovery date …
86Proxima Centauri — Coordinates: 14h 29m …
87Large Magellanic Cloud — The Large Magellanic Cloud Observation data (J2000 epoch) Constellation Dorado/Mensa …
88Fomalhaut — This article is about the star. For the extrasolar planet, see Fomalhaut b. Fomalhaut Debris ring around Fomalhaut showing location of planet Fomalhaut b imaged by Hubble Space Telescope s coronagraph …
89Canopus — otherusesStarbox begin name=Canopus Starbox image caption=An image of Canopus by Expedition 6Starbox observe epoch=J2000 constell=Carina ra=RA|06|23|57.1099cite web | url = http://simbad.u strasbg.fr/simbad/sim id?Ident=name+canopus | title =… …
90Atmosphere of Venus — Atmosphere of Venus …
