Observe Meteors: The Association of Lunar and Planetary Observers Meteor Observer's Guide

activity actual allows Alpha amateur annual appear Aquarids Astronomical atmosphere bright called camera changes Column comet computing counts determine direction disperser duration Earth effect especially estimate exposure falling field of view fireball grating half hour included indicates interest July June lens light lines Lower magnitude major showers maximum means measured meteor observing meteor shower meteoroids Micrometeorite minor minutes night Note number of meteors object observe meteors occur offer orbits particles path period Perseids person photographic planet plot position possible prism quadrant radiant radio record reduced remember report form require seen short shows single solar spectrum speed star storm streams studies tape recorder telescopic trail train triangulation types Upper visual watch zodiacal