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The Lyrids meteor stream has a medium activity and itsorigin is cometary. The stream occurs in the last days of April and the maximum of activity occurs in the days…

The purpose of this work is to analyse a meteor shower making use of a parameter easily comparable, that is the position of the maximum of activity. In fact we…

The Eta Aquarids meteor stream has a medium activity and its origin is cometary. The stream occurs in the first days of May and the maximum of activity occurs in…

The Eta Aquarids meteor stream has a medium activity and its origin is cometary. Their parent body is the comet Halley. The stream occurs in the first days of May…

The Lyrids meteor stream has a medium activity and its origin is cometary. Their parent body is the comet Thatcher, that passed the last time near Earth in 1861. The…

The Lyrids meteor stream has a medium activity and its origin is cometary. Their parent body is the comet Thatcher, that passed the last time near Earth in 1861. The…

Vi sono molti metodi per l’osservazione e l’indagine delle meteore. Storicamente sono stati usati metodi visuali successivamente sostituiti da tecniche più raffinate quali la fotografia e in seguito utilizzando apparecchiature…

The radio data were obtained using the meteor scatter techniques. The activity of a stream has been analyzed using the method SVB. This method allows to separate from the observed…

Viene illustrata la fisica che sta alla base del funzionamento di un radar meteorico introducendo l’equazione radar. Il parametro che gioca un ruolo fondamentale per la risoluzione di tale formula…

Viene innanzitutto considerata la regione dello spettro elettromagnetico analizzata dal radar: le onde radio e in particolare la banda VHF. I radar attraverso cui si osservano gli sciami meteorici possono…