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VISUAL OBSERVING PROCEDURES
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A.L.P.O. Meteors Section Alpha Alpha Capricornids altitude amateur American Meteor Society Andromedids annual showers Astronomical atmosphere azimuth bright brighter camera lens chopper Column comet computing counts Delta Aquarids determine diffraction grating disperser duration E Z W S lllllllll exposure fainter meteors field of view film FIREBALL REPORT Geminids hour of observing image intensifier June large number Leonids List of Meteor lllllllll lllllllll E Z W Lyrids magnitude major showers meteor observing meteor photography meteor shower meteor storm meteor streams meteor watching meteorites meteoroids meteors per hour meteors recorded meteors seen night of maximum number of meteors observe meteors orbits Orionids particles path Perseids Peter Millman photographic planet plot quadrant Quadrantids radiant radio report form right ascension Sept shower membership shower meteors single observer solar system spectrum Sporadic tape recorder Taurids Telescopic Meteors trail triangulation visual visual magnitude wavelengths zenith zodiacal light