15.11. | 1:30
Oblačno 4.3 °C
Water temperature 8.2 °C
Alternatives to rocket propulsion for space travel
Evening will start with a talk on astronomy (detailed below) at 8 pm by prof. Tomaž Zwitter from the Faculty of Mathematics and Physics of the University of Ljubljana. Weather permitting, the talk will be followed by practical astronomical observations, to be led by Tilen Kuhar. In case of bad weather we shall stay inside and show how Solar and Lunar eclipses occur, what are the phases of the Moon and planets, make a simple telescope or show how the ion propulsion works.
The event will end at 10:30 pm. There will be cable cars operating at 7:30 pm and at 8:00 pm and after end of event.
Price of the cable car return ticket and the event is 8 euro (adults) and 6 euro (children younger than 15 years).
A classical rocket motor is, and will continue to be, the only way to launch a rocket into space. But when we reach an orbit around the Earth there a several alternatives to explore: these include ion propulsion, space sails, and laser acceleration (or at least laser communication). This makes space travel within our Solar system ever simpler, but with a note that reaching other stars will remain to be out of reach in a foreseeable future. Fortunately, these stars and planets around them can be explored by observations from the Earth or its vicinity.
Astronomical evenings in summer of 2019
Astronomical events are organised by Triglav National Park and Žičnice Vogel d.d.