Perseid Meteor Shower The 11th/12th of August 2016
Transcription
Perseid Meteor Shower The 11th/12th of August 2016
The Tears of Saint Lawrence The Perseid meteor shower is also known as the ‘tears of Saint Lawrence’ since August 10 is the date of that saint’s martyrdom. A well-known story has persisted from earliest times. As deacon in Rome, St Lawrence was charged with the responsibility for the material goods of the Church and the distribution of alms to the poor. St Ambrose of Milan relates that when St Lawrence was asked for the treasures of the Church he brought forward the poor, among whom he had divided the treasure as alms. The Prefect was so angry that he had a great gridiron prepared, with coals beneath it, and had Lawrence's body placed on it. After the martyr had suffered the pain for a long time, the legend concludes, he made his famous remark, "I'm well done. Turn me over!" From this derives his patronage of cooks and chefs. Sources https://en.wikipedia.org/wiki/Perseus_(constellation) http://cometography.com/pcomets/109p.html https://www.youtube.com/watch?v=q_664lrmyGE https://en.wikipedia.org/wiki/Lawrence_of_Rome https://www.youtube.com/watch?v=Bu8H4wQ3eLY Genevieve McKee St Catherine's College Armagh 9th August 2016 This brochure was produced with the assistance of funding from the European Community's Horizon 2020 Programme under grant agreement No. 638653. Perseid Meteor Shower The 11th/12th of August 2016 The Perseid Meteor Shower Comet Swift–Tuttle continued The Perseids this year will peak on the 11th – 12th of August and astronomers predict that there will be up to twice as many meteors than usual. Giovanni Schiaparelli realized in 1865 that the comet Swift-Tuttle was the source of the Perseids. Under perfect conditions you may see up to 200 meteors per hour. The Perseids this year are active between 17th of July and the 24th of August. The Earth will collide with more material than usual from Comet Swift-Tuttle, which is the source of the Perseids. Jupiter's gravity has tugged the debris stream in such a way that dense trails of dust released hundreds of years ago will move closer to Earth on the night of the 11th/12th August. Comet Swift-Tuttle Comet Swift-Tuttle, whose debris creates the Perseids, is the largest object known to make repeated passes near Earth. Its nucleus is about 16 miles across, rather larger and ten times the mass of the object that wiped out the dinosaurs. Comet Swift-Tuttle was last seen in 1992, an unspectacular pass through the inner solar system that required binoculars to enjoy. The comet Swift-Tuttle was discovered by American astronomers Lewis Swift and Horace Tuttle in 1862. Comet Swift-Tuttle completes an orbit around the Sun roughly every 133 years. The last time it returned was the 11th of December 1992 and the next time we will see it is predicted to be in 2126. The Constellation Perseus The Perseids get their name from the constellation Perseus as they are seen flying from its general direction. Perseus was the Greek mythological hero who killed Medusa. Earliest information on the Perseid meteor shower dates back to Chinese records, when it was mentioned in A.D. 36. The first observation of the comet was in 69 B.C In 1835, Adolphe Quetelet identified the shower as emanating from the constellation Perseus . The constellation of Perseus may be derived from the Babylonian Old Man constellation.