Meteor Showers and Their Parent CometsCambridge University Press, 2006年9月14日 - 790 頁 Meteor Showers and their Parent Comets is a unique handbook for astronomers interested in observing meteor storms and outbursts. Spectacular displays of 'shooting stars' are created when the Earth's orbit crosses a meteoroid stream, as each meteoroid causes a bright light when it enters our atmosphere at high speed. Jenniskens, an active meteor storm chaser, explains how meteoroid streams originate from the decay of meteoroids, comets and asteroids, and how they cause meteor showers on Earth. He includes the findings of recent space missions to comets and asteroids, the risk of meteor impacts on Earth, and how meteor showers may have seeded the Earth with ingredients that made life possible. All known meteor showers are identified, accompanied by fascinating details on the most important showers and their parent comets. The book predicts when exceptional meteor showers will occur over the next fifty years, making it a valuable resource for both amateur and professional astronomers. |
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55P/Tempel-Tuttle A. V. Rodinov a/r² ablation coefficient absolute magnitude albedo angular momentum apparent luminous efficiencies Appendix Asteroids Astron Astrophys atomic mass units azimuth bright cameras change of orbital color index comet cometary cos(Zo Crifo ejection Crifo model D-criterion density dust ejection speed Earth's ejection model ejection velocity emissions equation follows evolution fireballs type flux fraction fragmentation g/cm³ gravity heliocentric distance I. P. Williams kinetic energy km/s Leonid ln(m log M(g log(sin(hr luminosity magnitude scale metal atom lines meteor magnitude meteor spectrum meteor storm prediction meteoroid stream nearly constant node nucleus orbital elements due orbital energy outflow panchromatic particle perihelion perpendicular photographic film physical theory radiant Radiation Pressure sin(h sin(Z sin² Smithsonian Contrib speed Vg storm prediction model stream association tanh temperature V₁ Verniani visual magnitude W/m²/nm water vapor wavelength range Whipple Whipple's zenith angle zenith attraction ΔΩ