Sökning: "kometer"
Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet kometer.
1. De cometis diatriba quam ex occasione præsignis illius, qui a 10. Novemb. 1680. ad 4. febr. 1681 in coelo fulsit, disputationibus aliquot publicis in academia Upsaliensi sub idem tempus exposuit. Joannes Bilberg
Sammanfattning : .... LÄS MER
2. Dissertatio de cometis quam consensu amplissimi collegii philosophici in regia Ubsalensi academia præside ... Jona Fornelio ... pro honor. philosoph. publico examini submittit Matthias Iser, Vermel. In audit. Gust. ad diem 27. Novemb. 1672. Hor. a m. consvetis
Sammanfattning : .... LÄS MER
3. Rosetta Observations of Plasma and Dust at Comet 67P
Sammanfattning : In-situ observations of cometary plasma are not made because they are easy. The historic ESA Rosetta mission was launched in 2004 and traversed space for ten years before arriving at comet 67P/Churyumov-Gerasimenko, which it studied in unprecedented detail for two years. LÄS MER
4. Formation of Pebble-Pile Planetesimals and the Interior Structure of Comets
Sammanfattning : Planets form in protoplanetary discs of gas, dust and ice around newborn stars. In the Solar System, not only planets are found as a result from the time of planet formation, but also remnant planetesimals in the form of asteroids, Kuiper belt objects and comets. Recent observations, e.g. LÄS MER
5. Radio meteors above the Arctic Circle : radiants, orbits and estimated magnitudes
Sammanfattning : This thesis presents results based on data collected with the 930 MHz EISCAT UHF radar system and three SKiYMet specular meteor radars. It describes in detail a method for meteoroid orbit calculation. The EISCAT UHF system comprises three identical 32 m parabolic antennae: one high-power transmitter/receiver and two remote receivers. LÄS MER