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The Path of Totality is, for one, a great title for a novel or movie (a sifi story for sure, perhaps one in which it is the statistical path through which spreads an alien virus that makes people smarter. I hope it gets here soon …). For another, it’s the path along the ground in which observers will see the Moon completely cover the Sun. For the first time in 99 years, this path will cross the continental United States. The 2017 path is a 70-mile-wide swath of the country that will experience a total eclipse.
This image comes from very cool interactive map page here …
The Path of Totality is, for one, a great title for a novel or movie (a sifi story for sure, perhaps one in which it is the statistical path through which spreads an alien virus that makes people smarter. I
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Photo: NASA
The Point of Greatest Eclipse (GE) is the most dead-on view of the eclipse. For this eclipse, the GE is just a hop skip and jump west from Hopkinsville, Kentucky. The rural town is both dreading and looking
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Photo: NASA
Greatest Duration (GD) of the eclipse is the time when the total eclipse lasts the longest from the point of view of the surface of the Earth. You’d think this would be right where the the Point of Greatest Eclipse, but no. The greatest duration is a bit longer than the GE and roughly 50 miles west of the GE. NASA explains: The GD “differs because of a combination of factors including the relative motion of the Moon’s shadow with respect to the curvature of Earth’s surface and to Earth’s Equator.” And, the space agency says don’t worry about enjoying the eclipse if you are not at the GD … “You can be hundreds of miles from the theoretical point of Greatest Duration and still enjoy totality lasting within a fraction of a second of the maximum possible.” In fact, the Duration of Totality on the coast of Oregon is still 1m58.7s.
You can play with this very cool mapping tool at NASA’s all-in-one eclipse page.
Greatest Duration (GD) of the eclipse is the time when the total eclipse lasts the longest from the point of view of the surface of the Earth. You’d think this would be right where the the Point of Greatest
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Photo: NASA
The “diamond ring” occurs when the sun shines through craters or valleys on the edge of the moon letting more light through … resembling bling.
The “diamond ring” occurs when the sun shines through craters or valleys on the edge of the moon letting more light through … resembling bling.
Photo: Óscar Martín Mesonero (OSAE), SAROS Group Via NASA
“Baily’s beads” are, similarly, those points around the moon’s edge just before and just after totality, when a few points of sunlight are visible through valleys of the moon.
“Baily’s beads” are, similarly, those points around the moon’s edge just before and just after totality, when a few points of sunlight are visible through valleys of the moon.
Photo: NASA
The “solar corona” will pop out at you when the moon completely blocks the sun and day turns into night … The solar corona is the upper atmosphere of the sun, which you normally can’t see because of either vampirism or, more likely, because the rest of the sun is just to darn bright.
The “solar corona” will pop out at you when the moon completely blocks the sun and day turns into night … The solar corona is the upper atmosphere of the sun, which you normally can’t see because of
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Photo: NASA
The penumbra, therefor, like penultimate is the shadowy region next to the umbra.
The penumbra, therefor, like penultimate is the shadowy region next to the umbra.
Photo: NASA
Occultations are when strangers show up at your door or accost you on the street and try to talk you into joining their strange belief systems, but ALSO it is what happens when a bigger body in space like the
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Photo: NASA
Duration of Annularity (DA): Often added to explanations about the Duration of Totality, the DA is not a total eclipse of the sun such as the upcoming eclipse. The DA is the time during which the moon, too far from the Earth to totally block out sunlight, is ringed entirely by the sun; or “the maximum phase of an annular eclipse during which the Moon’s entire disk is seen silhouetted against the Sun. Annularity is the period between second and third contact during an annular eclipse,” NASA writes.
Photo: Taken on Sept. 1, 2016, in Saint-Louis, on the Indian Ocean island of La Reunion, this photo shows the moon covering the sun, leaving a ring of fire effect around the moon, during an annular solar eclipse.
Duration of Annularity (DA): Often added to explanations about the Duration of Totality, the DA is not a total eclipse of the sun such as the upcoming eclipse. The DA is the time during which the moon, too far
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Photo: RICHARD BOUHET/AFP/Getty Images
ISO 12312-2 compliant and CE certified, space-ranger approved and coveted eclipse viewing film! Everyone who writes anything about the eclipse adds very prominently that you are supposed to look directly at the the sun during the eclipse. KIDDING! Don’t look at the sun. It’ll burn out your naked eyes. Instead, go to this NASA page to learn more about what kind of glasses you’ll need, and yes they are the ones that meet the aforementioned regulations. NASA adds, cautiously, “If you are within the path of totality, remove your solar filter only when the Moon completely covers the sun’s bright face and it suddenly gets quite dark.”
ISO 12312-2 compliant and CE certified, space-ranger approved and coveted eclipse viewing film! Everyone who writes anything about the eclipse adds very prominently that you are supposed to look directly at the
… more
Photo: NASA
Or, use a “Sun Funnel.” Directions here …
Or, use a “Sun Funnel.” Directions here …
Photo: NASA
Or, you can use a “pinhole projector” to view the projection of the eclipse.
JPL: How to Make a Pinhole Camera
Or, you can use a “pinhole projector” to view the projection of the eclipse.
JPL: How to Make a Pinhole Camera
Photo: JPL
“Heliophysics,” which we are all interested in now, is the study of how the sun affects space and the space environment of planets.
Photo: New Delhi, INDIA: An Indian girl watches the projected image of a partial solar eclipse in New Delhi, 29 March 2006.
“Heliophysics,” which we are all interested in now, is the study of how the sun affects space and the space environment of planets.
Photo: New Delhi, INDIA: An Indian girl watches the projected image of a
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Photo: MANAN VATSYAYANA/AFP/Getty Images
Heliophysicists study things like “transits.” That’s the “passage of a planet across the disk of the Sun” or a star. When that happens, even very distant planets can be found and studied, which is how the agency’s Keplar space telescope team and citizen scientists have found thousands of exoplanets.
Heliophysicists study things like “transits.” That’s the “passage of a planet across the disk of the Sun” or a star. When that happens, even very distant planets can be found and studied, which is how
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Photo: NASA
The “Eclipse Obscuration” is the fraction of the Sun’s area eclipsed.
Photo: A solar eclipse over the Pacific Ocean at sunset, with the “diamond ring” feature visible.
The “Eclipse Obscuration” is the fraction of the Sun’s area eclipsed.
Photo: A solar eclipse over the Pacific Ocean at sunset, with the “diamond ring” feature visible.
Photo: Corbis/Corbis/VCG Via Getty Images
The “Eclipse Magnitude” is the fraction of the Sun’s diameter eclipsed.
The “Eclipse Magnitude” is the fraction of the Sun’s diameter eclipsed.
Photo: Lars Baron/Getty Images
The eclipse as seen from San Francisco will not be close enough to the Path of Totality to witness a full eclipse.
This image comes from very cool interactive map page here …
The eclipse as seen from San Francisco will not be close enough to the Path of Totality to witness a full eclipse.
This image comes from very cool interactive map page here …
Photo: NASA
Likewise, Seattle also fall outside of the Path of Totality and will still have a sliver of sun to contend with.
This image comes from very cool interactive map page here …
Likewise, Seattle also fall outside of the Path of Totality and will still have a sliver of sun to contend with.
This image comes from very cool interactive map page here …
Photo: NASA
CARBONDALE, Ill. (AP) — Illinois public health experts are asking residents to take safety precautions before next month’s solar eclipse.
Illinois Department of Public Health director Nirav Shah says looking at the sun without eclipse glasses or solar viewers can cause retinal burns. He says ordinary sunglasses or homemade filter’s aren’t safe. Instead the department says those who want to safely view the eclipse should purchase special eclipse glasses and handheld solar viewers. More information is available on the American Astronomical Society’s website.
A total solar eclipse is happening on August 21st and the people at NASA are taking full advantage of the situation to learn more about the sun. Ryan Sartor (@ryansartor) has that story.
Media: Buzz60
The eclipse is expected to last from about 12 p.m. to 2:45 p.m. on Aug. 21 in Illinois. Portions of southern Illinois are expected to be in the path of totality, or when the moon will completely block the sun. Totality in the Carbondale will last up to 2 minutes and 40 seconds.
Article source: http://www.timesunion.com/news/article/Illinois-health-experts-warn-of-unsafe-solar-11663739.php