The value of the upper limit of the Southworth-Hawkins D criterion for the Pons-Winneckids (June Bootid) and Perseids meteor streams is analyzed on the basis of the comparison of the parent comet orbit with the model orbits ...

Visual observations of the Perseid meteor shower carried out between the last two returns of the comet Swift-Tuttle are processed with the use of the method developed by the authors. The conclusion is made that the maximum ...

Long-term visual observations of the Lyrid meteoroid shower have been analyzed to determine the mass distribution of Lyrid meteoroids. The value of the parameter S has been confirmed to be less than 1.8, which is normally ...

The activity of the Lyrid meteor shower is analyzed by visual observations in the interval 1900-2007. Processing of observations over a long time interval confirmed the presence of two periods of activity of the shower, ...