Transit of Venus Presentation
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Transit of Venus Presentation

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This powerpoint was prepared by the SSSI to provide background information on the Transit of Venus.

This powerpoint was prepared by the SSSI to provide background information on the Transit of Venus.

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Transit of Venus Presentation Transit of Venus Presentation Presentation Transcript

  • Title: Transit of VenusAuthor: Craig Roberts & Matthew Cooper
  • The sighting of Australia by Captain Cook in 1770 was preceded by one of the most important scientific expeditions of the time; to measure the distance between the Earth and the Sun(an astronomical unit - AU) and so compute the scale of the solar system.This was achieved by measuring the time taken for Venusto transit across the face of the Sun for different locations on Earth and uses the parallax effect to compute 1 AU. Title: Transit of Venus Author: Craig Roberts & Matthew Cooper
  • The Project will involve YOU! With Projects, Competitions And Seeing the Transit of Venus. But First something about the Transit.Title: Transit of VenusAuthor: Craig Roberts & Matthew Cooper
  • (Courtesy Hyperphysics, 2006) Venus’ orbit is inclined (by 3.39 degrees) relative to the ecliptic Title: Transit of Venus Author: Craig Roberts & Matthew Cooper
  • Ascending (A) or Duration since last transit Date of transit Descending (D) node (years and months) 6 December 1631 A 4 December 1639 A 8 yrs 6 June 1761 D 121 yrs 6 months 3 June 1769 D 8 yrs 9 December 1874 A 105 yrs 6 months 6 December 1882 A 8 yrs 8 June 2004 D 121 yrs 6 months 5 June 2012 D 8 yrs11 December 2117 A 105 yrs 6 months 8 December 2125 A 8 yrsTitle: Transit of VenusAuthor: Craig Roberts & Matthew Cooper
  •  First predicted by Johannes Kepler in the early 17th century First scientifically observed transit in 1639 by Jeremiah Horrocks  using a telescope to project the image of the Sun onto a piece of paper  an estimation of the Astronomical Unit was made, but based on assumptions of the size of Venus Early in the 18th century, Edmund Halley proposed a method of calculating the distance from Earth to Sun using transits of Mercury or Venus. The transits of 1761 and 1769 were observed by many people, in different locations around the world. The 1769 transit is the one observed notably by Captain James Cook in Tahiti. In Australia in 1874, a team of men led by Government Astronomer Henry Chamberlain Russell, scientifically observed transit of Venus in various locations around New South Wales. The 1882 transit was not observed. A re-enactment at Woodford in the Blue Mountains on 8 June 2004 Title: Transit of Venus Author: Craig Roberts & Matthew Cooper
  •  The Project will video of the event Which leaves a lasting record and allows accurate timing of the ingress and egress times The Project partners with amateur astronomers using astronomical telescopes with an accurate tracking and timing Old mechanism Title: Transit of Venus New Author: Craig Roberts & Matthew Cooper
  • …. or here….Title: Transit of Venus If you live here …Author: Craig Roberts & Matthew Cooper
  • Title: Transit of VenusAuthor: Craig Roberts & Matthew Cooper
  •  The Surveying and Spatial Science Institute (SSSI) with regions in Queensland, New South Wales, Australian Capital Territory, South Australia, Victoria, West Australia, Northern Territory, Tasmania and New Zealand; http://www.sssi.org.au/ Title: Transit of Venus Author: Craig Roberts & Matthew Cooper
  • Surveying & Spatial Science Institute covers professionals in the fields of: Land Surveying, Hydrographical Surveying, Engineering Surveying Mine Surveying, Spatial Information, (Geographical Information) Cartography, Photogrammetry, Remote Sensing and Geodetic Surveying. Title: Transit of Venus Author: Craig Roberts & Matthew Cooper
  • Surveying & Spatial Science Institute THANK YOUTitle: Transit of VenusAuthor: Craig Roberts & Matthew Cooper