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Awe and Wonder a Scientific, Mathematical and Spiritual Journey presented by Steve Kliewer Total Solar Eclipse Coral Sea Nov 14, 2012
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Topics Total Solar Eclipse Coral Sea - Nov 14, 2012 Solar Eclipse videos (5 min) Upcoming Attraction – Aug 2017 The Sun-Earth-Moon System The Geometry of Shadows Lunar Rhythms Eclipse Features
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MS Oosterdam
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Eclipse Particulars Nov 14, 2012 Our position in the Coral Sea was at: S 22 18m, E 158 Totality: 2m 40s Sunrise = Sun Altitude=29 1st contact:06:50 a.m. Sydney DST = UTC+11 2nd contact:07:48 a.m. 3rd contact:07:51 a.m. 4th contact:08:58 a.m. Umbral velocity 750 m/s Umbral Diameter 160 km
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TSE2012 Mercator Animation
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Eclipse Features Contacts: First, Second, Third, & Fourth Partial Phases: Pinhole images, Cooling, Animal Behavior, color of landscape, Venus On the Brink: Shadow bands, Sunset colors, approaching shadow, Bailey’s Beads, Corona?, Diamond Ring During Totality: Corona: petals to side, brushes at poles (sunspot minimum) Chromosphere: spiny, deep ruby red layer Prominences: pink flames or loops Stars and Planets: Mercury, Venus, Mars Key Points
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Eclipse
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Gathering Gloom See movie
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Excitement Builds See movie
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Total Eclipse of the Sun http://www.nasa.gov/mission _pages/sunearth/news/eclips e-20121113.html
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Aug 21, 2017 2m 40s - Oregon to N. Carolina See movie
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Geometry and Rhythm
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The Sun-Earth-Moon System Both the Sun and Moon are 1/2 in diam. This is the same as a dime held at 6 1/2 ft. Our horizon rotates 15 /hr. The Moon moves 1 diameter / hr (2500 MPH) thru stars. The Moon rises 50 minutes later each day. The Earth moves 8 diameters / hr (65,000 MPH) around the Sun. Key Points
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The Geometry of Shadows Umbra is the area of full shadow. Total Eclipse Penumbra is the area of partial shadow. Partial Eclipse Antumbra is the region beyond the Umbra. Annular Eclipse Key Points
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To Sun
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Lunar Rhythms Synodic Month29.5 days (full to full) Revolution Period27.3 days Rotation Period27.3 days Draconic Month27.2 days (crossing the ecliptic) Anomalistic Month27.6 days (closest to closest) Saros Cycle18 yrs 11.32 days (223 synodic months)
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Lunar Rhythms Solar Eclipses require a New Moon. Lunar Eclipses require a Full Moon. The Moon’s orbit is tilted 5° (9 diameters) Four primary rhythms: New to New, rising and falling, in and out, & yearly seasons Eclipse Seasons occur every 6 lunar months because of the first two rhythms. All four rhythms repeat every 18 years. Key Points
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Umbra Penumbra Cabo San Lucas Mazatlan Mexico City
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July 11, 1991
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Feb 26, 1998
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Aug 14, 1999
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Mar 29, 2006
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Nov 14, 2012
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