Meteors in the IAU Meteor Data Center on Hyperbolic Orbits

  • M. HajdukováJr.Email author
Chapter 1: Meteor Shower Activity, Forecasting, Dust Orbits


The hyperbolic meteor orbits among the 4,581 photographic and 62,906 radar meteors of the IAU MDC have been analysed using statistical methods. It was shown that the vast majority of hyperbolic orbits has been caused by the dispersion of determined velocities. The large proportion of hyperbolic orbits among the known meteor showers strongly suggests the hyperbolicity of the meteors is not real. The number of apparent hyperbolic orbits increases inversely proportional to the difference between the mean heliocentric velocity of meteor shower and the parabolic velocity limit. The number of hyperbolic meteors in the investigated catalogues does not, in any case, represent the number of interstellar meteors in observational data. The apparent hyperbolicity of these orbits is caused by a high spread in velocity determination, shifting a part of the data through the parabolic limit.


Meteoroid Meteor shower Hyperbolic Interstellar 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Z. Ceplecha, W.G. Elford, D.O. Revelle, R.L. Hawkes, V. Porubčan, M. Šimek, Meteor phenomena and bodies. Space Sci. Rev. 84, 327–471 (1998)Google Scholar
  2. A. Hajduk, On the very high velocity meteors. in Meteoroids 2001 Conference, ESA SP - 495, ed. by B. Warmbein, (Kiruna, 2001), pp. 557–559Google Scholar
  3. M. Hajduková Jr., On the frequency of interstellar meteoroids. Astron. Astrophys. 288, 330–334 (1994)ADSGoogle Scholar
  4. M. Hajduková Jr., Shower meteor data in the IAU MDC. Acta Astron. et Geophys. Univ. Comenianae, XXIV, 33–39 (2002)Google Scholar
  5. M. Hajduková Jr., T. Paulech, Hyperbolic and interstellar meteors in the IAU MDC radar data. Contrib. Astron. Obs. Skalnate Pleso 37, 18–30 (2007)ADSGoogle Scholar
  6. B.L. Kashchejev, S.V. Kolomiyets, Interstellar particle detection and selection criteria of meteor streams. in Meteoroids 2001 Conference, ESA SP - 495, ed. by B.Warmbein, (Kiruna, 2001), pp. 643–650Google Scholar
  7. B.A. Lindblad, L. Neslušan, V. Porubčan, J. Svoreň IAU Meteor Database of photographic orbits - Version 2003. Earth, Moon and Planets 93, 249–260 (2005)CrossRefADSGoogle Scholar
  8. J. Štohl, On the problem of hyperbolic meteors. Bull. Astron. Inst. Czechosl. 21, 10–27 (1971)Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.Astronomical Institute of the Slovak Academy of SciencesBratislavaSlovak Republic

Personalised recommendations