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Monday October 3, 2011. (Mercury; Venus; Video – Journey to the Edge of the Universe – Part4). The Launch Pad Monday, 10/3/11. No Bell Ringer Today. Latest News. Watching the Sky in October, 2011. The Planets - A Brief Tour . Mercury. The innermost planet – 36 million miles from the Sun - PowerPoint PPT Presentation
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MondayOctober 3, 2011(Mercury; Venus; Video – Journey to
the Edge of the Universe – Part4)
The Launch PadMonday, 10/3/11
No Bell Ringer Today
Assignment Currently Open Page Date of Notes
on Website Date Issued Date DueLast Date
to Remediate
Quiz 3 TBD 9/19 9/19 9/19 10/3
Lab - Distance and Spacing of the Planets TBD 9/23 9/23 9/28
Quiz 4 TBD 9/27 9/27 9/27 10/11
Latest News
Watching the Sky in October, 2011
The Planets - A Brief Tour
Mercury• The innermost planet – 36
million miles from the Sun• The smallest planet – 3 015
miles in diameter• Has no atmosphere• Cratered highlands• Vast, smooth terrains• Very dense – average 5.4 g/cm3
(only Earth is denser)• Revolves quickly – only 88 days
to circle the Sun• Rotates slowly – 59 days to turn
once on its axis
Mercury
Venus• Venus is the third most brilliant
object in our sky after the Sun and Moon
• Its similar to Earth in:• Size - 7 526 miles in diameter • Density – 5.2 g/cm3
• Earth’s closest neighbor after the Moon
• Shrouded in thick clouds that are Impenetrable by visible light
• Venus’ atmosphere is 97% carbon dioxide
• The surface atmospheric pressure is 90 times that of Earth
Venus• Venus’ Surface
• Mapped by radar, not visual observation
• Surface Features• 80% of surface is subdued
plains that are mantled by volcanic flows
• Low density of impact craters• Tectonic deformation must
have been active during the recent geologic past
• Thousands of volcanic structures
Venus
Venus Radar Map of Surface
Venus
Video (Part 4)