Library of Congress May 9, 2012 Dr. Sten Odenwald NASA.
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Transcript of Library of Congress May 9, 2012 Dr. Sten Odenwald NASA.
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Library of CongressMay 9, 2012
Dr. Sten Odenwald
NASA
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AcknowledgmentsMusic Division
Ms. Susan ClermontMr. Loras SchisselMs. Jan Lauridsen
Rare Books and Manuscripts
Ms. Elizabeth Gettins
WebsiteMr. Pat PaduaMr. Domenic SergiiMs. Betsy MillerMs. Moryma AndelottNetwork Development Team
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Galileo ca 1609.
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Galileo ca 1609.
Inappropriate use of TelescopeProbably illegal use in
many countries
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Galileo ca 1609.
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1,500 BC Assyrian Venus Transit observation ?
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Montezuma ca
1520?
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1631…
Predicted butnot
visible in Europe
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1639Jerimiah Horrocks correctly
predicts, and first observes, ‘new’ Venus transit.
William Crabtree also sees it.
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December 4, 1639
June 5, 1761
June 3, 1769
December 8, 1874
December 6, 1882
June 8, 2004
122.5 years
8 years
105.5 years
8 years
122.5 years
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1761 Transit seen by 176 people.
Atmosphere discovered by Mikhael Lomonosov
Public reaction?
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1769 400 sightings published.
Captain Cook’s Tahiti chronicles
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New York Times August 30, 1874
Le Gentil’s ill-fated expedition
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1769 Norrington’s observation from Pennsylvania
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New York Times, January 8, 1857
The next transit…..?????
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1874 December 8, Many photographs taken, few useful. Congress allocates $75,000 for international scientific expeditions.
Simon Newcomb
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New York Times, December 21, 1874
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New York Times, November 15, 1879
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New York Times, November 27, 1882
…No intelligent person who realizes its importance will fail to do as much toward the celebration of the rare event as to follow the planet’s course with the aid of smoked glass, at some point during its passage. It is the simplest sight imaginable, a tiny black dot making its way over the sun, but the solution of the great problem of the sun’s distance may hinge on the seemingly unimportant occurrence.
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Photograph of the 1882 transit of Venus taken at Vassar College by Maria Mitchell and her students. (Picture courtesy of Vassar College Library)
An image of the 1882 transit of Venus recorded at Lick Observatory, California
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New York Times, December 23, 1882
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1882 December 7 Massive public interest.
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The Transit of Venus March
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The Venus Gallop
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The Venus Polka The Venus Waltz
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Library of Congress -I Hear America Singing
Sousa’s Transit of Venus March Additional VT theme-related sheet music Educational Activities
http://lcweb2.loc.gov/diglib/ihas/html/venus/venus-home.html
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“Senator Chea Campaign Demagoguery”Washington Post
September 27, 1884
Some things never change…
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New York Times, April 26, 1894
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Tycho Brahe ca 1595.........................5,000,000 miles
Kepler ca 1610...................................15,000,000 miles
Giovanni Cassini 1672......................87,000,000 miles
1882 Venus Transit..........................92,720,000 miles
1960 Venus Radar studies..............92,957,209 miles.
The Astronomical Unit
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“There will be no other [transit of Venus] till the twenty-first century of our era has dawned upon the earth, and the June flowers are blooming in 2004.
What will be the state of science when the next transit season arrives God only knows.”
[1882 – William Harkness, USNO]
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Bill never said anything about Cicadas!!!!
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First Webcast – over 50 million viewers!
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European Southern Observatory - The VT-2004 project,
2763 participants - 1000 school classes.
1 AU = 149,608,708 km ± 11,835 km Adopted value = 149, 597, 871 km
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NASA TRACE satellite – Optical band
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NOAA - GOES-12 satellite soft X-ray imager
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Courtesy - Astronomy Picture of the Day 6/8/2004
Courtesy - Detlef Koschny Courtesy – Fred Espenak (NASA)
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So when will it happen?
Washington DC Area:
Start: 6:03 PM
Sunset: 8:26 PM
Ends: Midnight
We see the first 2 hours
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Lots of places to view from this time!!!
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Yes…There is an
App for that!!!
Timing the transit of Venus with the Transit of Venus
phone app – Steven van Roode
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If you miss the transit this time…
you can try again in…..2117 !