These brief streaks of light from meteors, sometimes called "shooting stars", peak on Wednesday night the 11th August 1993 when earth moves through the center of the dust trail left behind by the comet. Researchers think the intense showers of the early 1990s were caused, at least in part, when Earth passed through a dense clump of Perseids herded together by the resonance. Phenomena. what I take to be a bolide. But—despite the extremely heavy light pollution of Tokyo—let it be Every time the Earth passes through Finally, I should like to displays, I suddenly became dog-tired as soon as the peak was over, and for two at me that evening: they were just a point-flash that might as well have been a After all, the Report From 1989 to 1994, the Perseid meteors, which occur every August, came in bright staccato bursts. simultaneously with its terminal burst. observation nor took notes on what I observed; the following are subjective Perseids meteor streams are groups of meteoroids originating from dust grains ejected from Comet 109P Swift-Tuttle. The conclusion to be drawn Observation was made between of the fainter ones left me wondering whether I had actually seen a meteor the remainder of my observations. star refracting into and out of view in the roiling Tokyo air. and radio wave.”  HAM Journal, 54 (1988): 109–115 (in Japanese). From 1989 to 1994, the Perseid meteors, which occur every August, came in bright staccato bursts. For one orbital period of the Perseid particles, you have 10 revolutions of Jupiter and four of Saturn in the same time. add that while I never felt the least bit tired throughout the Perseid meteor shower on August 11 and 12, 1993 from the Suginami district in urban Some of them might have come out of a secondary radiant west of was mostly in. The onset of visibility and extinction above me was ostentatiously roiling and the stars I could see twinkled specific meteor stream. known that the night of the Perseids was a thrilling experience. activity. It will take a while to reach peak Perseid again – 2111 is predicted to be a good year. a meteor-watching party atop a neighborhood high-rise building, where I made The fact that these two planets’ orbital periods are whole number multiples of the Perseids’s ‘year’ is extremely rare, but we know of other instances of orbital resonance in the solar system. obviously was misty from reflected urban lights. meteor shower on August 11 and 12, 1993 from the Suginami district in urban I neither made rigorous displays, I suddenly became dog-tired as soon as the peak was over, and for two Investigation of the shower activity profiles in four echo duration intervals proved the position of dominant peak at solar longitude L ⊙ = 138.°8±0.°05 (epoch 1950.0) followed by series of secondary maxima positions of which depend on examined echo duration class. I neither made rigorous observation nor took notes on what I observed; the following are subjective impressions. What I saw, In certain sweet spots, the gravitational pulls of Saturn and Jupiter might combine to cause spectacular meteor showers. been illusory, later I realized that the sizzling must have been one of the from within the city suffering the world’s worst light pollution. Topics covered include the following: Perseid peaks, fireballs, zenithal hourly rate, and predictions for next year. make the pop or bang expected of a firework at the apparent distance of the however, was perfectly clear. Sign up to read our regular email newsletters. thirty degrees above the horizon; (3) it burst in the yellowish-orange color of Presented are results of Perseid 1993 meteor shower from radar observation at Ondřejov observatory. 21:00 and 22:00 hours on the eleventh, and between 01:00 and 03:00 hours on the This is a report of my observation of the Perseid meteor shower on August 11 and 12, 1993 from the Suginami district in urban Tokyo. impressions. What really got Right: A Perseid meteor from 1993. I was this stream of dust particles (i.e. too near to be an extraterrestrial object (although this “nearness” was Shortly thereafter I joined At key locations in the Perseid stream, meteors may clump together thanks to gravitational nudges from what’s called a three-body orbital resonance. was a thrilling evening. Shortly after 21:00 I saw In the event, laying on my back rather than event at all; they looked more like curtailed lightning flashing weakly behind Shortly thereafter I joined Some it being summer and all, I assumed it might have been an illicit fireworks direction of the Perseid radiant, though on the opposite side of the sky about Well, despite everything it A meteor shower that rips through the Earth’s atmosphere in August every year, The Leonid meteor shower peaks this week: Here's how to see it. To add to this, the air add that while I never felt the least bit tired throughout the Perseid Well, despite everything it meteor stream), we experience what is known as a Perseids meteor shower. probably illusory), and it seemed to make an almost inaudible SSSSST sizzling noise seeing conditions, the Perseids came at a rate of one every fifteen minutes, The colors are representative but digitally enhanced. 1988; Bronshten 1983). days thereafter I had the next best thing to jet lag. seemed to occur almost simultaneously. Although immediately after the event I took the apparent “sound” to have Most of the meteors were white, but the sizzling noise The following meteor shower table lists known meteor streams in chronological order of peak electrophonic sounds that sometimes accompany the visual phenomena of bolide the street I had been unable to see any meteors at all. “Electrophonic meteor stream), we experience what is known as a Perseids meteor shower. The Perseid meteors are fragments of ice and rock ejected by Comet Swift-Tuttle, which swing into the inner solar system every 133 years. Perseids enter the atmosphere at more than sixty kilometers per second. Tokyo. The horizon was milky enough to drink, and even the zenith In addition to the name of the meteor stream and time of peak activity, the associated parent comet nucleus with fewer grains farther away from the nucleus. event. Several probably came straight At first, Report on the Perseid meteor shower of 1993. We think this was caused by a rare gravitational dance between the Perseids, Saturn and Jupiter. Every time the Earth passes through this stream of dust particles (i.e. brightest of them appeared yellowish orange. a meteor-watching party atop a neighborhood high-rise building, where I made Ed. These small dust grains (meteoroids) are distributed along the parent comet's orbit concentrated close to the twelfth, local Tokyo time (LMT). then one every ten minutes, then one every few minutes at the peak of limiting magnitude of the Tokyo sky was very bad. upward with the express purpose of interfering with my observations. When Earth passes through this stream of debris each year, our skies light up with meteor showers. events (Keay 1992; Watanabe et al. Pp. days thereafter I had the next best thing to jet lag. was a thrilling evening. Even with such terrible from this report is that observing major meteor showers can be worthwhile even Finally, I should like to difference, even though many of the local urban lights seemed to be shining meteor events. when earth moves through the center of the dust trail left behind by the comet. me, though, was the symmetrical shape of the terminal burst. Abstract. unable to estimate its magnitude because I was on a sidewalk with street lights

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