Posts Tagged ‘Nebraska’

30 July

Is “Observing Total Solar Eclilpse on Aug. 21, 2017” Part of Your Bucket List?

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Dear Friends, Visitors/Viewers/Readers,

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Below, is a re-post from our sister publication, Windermere Sun (of July 25, 2017):

A total solar eclipse occurs when the Moon completely covers the Sun’s disk, as seen in this 1999 solar eclipse. Solar prominences can be seen along the limb (in red) as well as extensive coronal filaments.(Photo Attribution: I, Luc Viatour, Presented at: WindermereSun.com)

Dear Friends & Neighbors,

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Chart for Solar Eclipse (Attribution: Eclipse Predictions by Fred Espenak, NASA’s GSFC, Presented at: WindermereSun.com)

Map of Solar Eclipse (presented at: WindermereSun.com)

Map of the Solar Eclipse 2017 USA (created with Eclipse 2017 Android App, Geodata from OpenStreetMap (Attribution: Wolfganag Strickling, Presented at: WindermereSun.com)

Windermere Blue Sunset (credit: Windermere Sun-Susan Sun Nunamaker)

(Please click on red links & note magenta)

How many of you have “observing a Total Solar Eclipse” on your bucket list? Did you know that a total solar eclipse will occur on Monday, August 21, 2017? It will be visible in totality only within a band across the entire contiguous United States ( covering: Oregon, Idaho, Montana, Wyoming, Nebraska, Kansas, Iowa, Missouri, Illinois, Kentucky, Tennessee, Georgia, North Carolina, South Carolina). The last time a total solar eclipse was visible across the entire contiguous United States was during the June 8, 1918 eclipse.

Map of the Solar Eclipse 2017 USA (created with Eclipse 2017 Android App, Geodata from OpenStreetMap (Attribution: Wolfganag Strickling, Presented at: WindermereSun.com), covering: Oregon, Idaho, Montana, Wyoming, Nebraska, Kansas, Iowa, Missouri, Illinois, Kentucky, Tennessee, Georgia, North Carolina, South Carolina

A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon’s apparent diameter is larger than the Sun’s, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth’s surface, with the partial solar eclipse visible over a surrounding region thousands of kilometers wide. This eclipse is the 22nd of the 77 members of Saros series 145, which also produced the solar eclipse of August 11, 1999. Members of this series are increasing in duration. The longest eclipse in this series will occur on June 25, 2522 and last for 7 minutes and 12 seconds.

The total eclipse will have a magnitude of 1.0306 and will be visible from a narrow corridor through the United States. It will be first seen from land in the US shortly after 10:15 a.m. PDT at Oregon’s Pacific coast, and then it will progress eastward through Salem, OR, Casper, WY, Lincoln, NE, Kansas City, Nashville, TN, Columbia, SC, and finally Charleston, SC. Total Solar Eclipse will darken skies all the way from Oregon to South Carolina, along a stretch of land about 70 miles (113 kilometers) wide. People who descend upon this “path of totality” for the big event are in for an unforgettable experience. A partial eclipse will be seen for a greater time period, beginning shortly after 9:00 a.m. PDT along the Pacific Coast of Oregon.

The longest duration of totality will be 2 minutes 41.6 seconds at about 37°35′0″N 89°7′0″W in Giant City State Park, just south of Carbondale, Illinois, and the greatest extent (width) will be at 36°58′0″N 87°40′18″W near the village of Cerulean, Kentucky, located in between Hopkinsville, KY and Princeton, KY. This will be the first total solar eclipse visible from the Southeastern United States since the solar eclipse of March 7, 1970, which was only visible from Florida.

 

 


A partial solar eclipse will be seen from the much broader path of the Moon‘s penumbra, including all of North America, northern South America, Western Europe, and some of Africa.

The August 2017 eclipse will be the first with a path of totality crossing the US’s Pacific coast and Atlantic coast since 1918. Also, its path of totality makes landfall exclusively within the United States, making it the first such eclipse since the country’s independence in 1776. (The path of totality of the eclipse of June 13, 1257, was the last to make landfall exclusively on lands currently part of the US.

If you are interested in observing this event (total Solar Eclipse), below, in italics, is excerpt from “Eye Safety During Solar Eclipses” from NASA:

The Sun can be viewed safely with the naked eye only during the few brief seconds or minutes of a total solar eclipse. Partial eclipses, annular eclipses, and the partial phases of total eclipses are never safe to watch without taking special precautions. Even when 99% of the Sun’s surface is obscured during the partial phases of a total eclipse, the remaining photospheric crescent is intensely bright and cannot be viewed safely without eye protection [Chou, 1981; Marsh, 1982]. Do not attempt to observe the partial or annular phases of any eclipse with the naked eye. Failure to use appropriate filtration may result in permanent eye damage or blindness!

Generally, the same equipment, techniques and precautions used to observe the Sun outside of eclipse are required for annular eclipses and the partial phases of total eclipses [Reynolds & Sweetsir, 1995; Pasachoff & Covington, 1993; Pasachoff & Menzel, 1992; Sherrod, 1981]. The safest and most inexpensive of these methods is by projection, in which a pinhole or small opening is used to cast the image of the Sun on a screen placed a half-meter or more beyond the opening. Projected images of the Sun may even be seen on the ground in the small openings created by interlacing fingers, or in the dappled sunlight beneath a leafy tree. Binoculars can also be used to project a magnified image of the Sun on a white card, but you must avoid the temptation of using these instruments for direct viewing.

The Sun can be viewed directly only when using filters specifically designed for this purpose. Such filters usually have a thin layer of aluminum, chromium or silver deposited on their surfaces that attenuates ultraviolet, visible, and infrared energy. One of the most widely available filters for safe solar viewing is a number 14 welder’s glass, available through welding supply outlets. More recently, aluminized mylar has become a popular, inexpensive alternative. Mylar can easily be cut with scissors and adapted to any kind of box or viewing device. A number of sources for solar filters are listed below. No filter is safe to use with any optical device (i.e. – telescope, binoculars, etc.) unless it has been specifically designed for that purpose. Experienced amateur and professional astronomers may also use one or two layers of completely exposed and fully developed black-and-white film, provided the film contains a silver emulsion. Since all developed color films lack silver, they are always unsafe for use in solar viewing.

Unsafe filters include color film, some non-silver black and white film, medical x-ray films with images on them, smoked glass, photographic neutral density filters and polarizing filters. Solar filters designed to thread into eyepieces which are often sold with inexpensive telescopes are also dangerous. They should not be used for viewing the Sun at any time since they often crack from overheating. Do not experiment with other filters unless you are certain that they are safe. Damage to the eyes comes predominantly from invisible infrared wavelengths. The fact that the Sun appears dark in a filter or that you feel no discomfort does not guarantee that your eyes are safe. Avoid all unnecessary risks. Your local planetarium or amateur astronomy club is a good source for additional information.

In spite of these precautions, the total phase (and only the total phase) of an eclipse can and should be viewed without filters. It is crucial that you know when to take off and put back on your glasses; see Eye safety during a total solar eclipse

Total Eclipse Viewing Events (source: wkipedia), below:

Oregon

Idaho

Wyoming

  • Casper, Wyoming – The Astronomical League, an alliance of amateur astronomy clubs, will hold its annual Astrocon conference, and there will be other public events, called Wyoming Eclipse Festival 2017.

Nebraska

Missouri

Illinois

Kentucky

Tennessee

North Carolina

Georgia

  • Rabun County, Georgia – Multiple events occur across Rabun County, including the OutASight Total Solar Eclipse Viewing Party with astronomers from Georgia State University. Other events will be held at Tallulah Gorge State Park, Black Rock Mountain State Park, and other locations in the county.

South Carolina

Viewing from outside the United States

Canada

A partial eclipse will be visible across the width of Canada, ranging from 89% in Victoria, British Columbia to 11% in Resolute, Nunavut.

Central America, Mexico, Caribbean islands

A partial eclipse will be visible from Central America, Mexico, and the Caribbean islands.

Europe

The boundaries of the sunset partial eclipse in Western Europe. Calculation with EclipseDroid with atmospheric refraction.

In northwestern Europe, the eclipse will only be visible as a partial eclipse, in the evening or at sunset. Only Iceland, Ireland and Scotland will see the eclipse from beginning to end; in the rest of the UK, Norway, the Netherlands, Belgium, France, Spain and Portugal, sunset will occur before the end of the eclipse. In Germany, the beginning of the eclipse will be potentially visible just at sunset only in the extreme northwest of the country. In all regions east of the orange line in the map, the eclipse will be invisible.

Online Viewing Events

 

Gathered, written, and posted by Windermere Sun-Susan Sun Nunamaker
More about the community at www.WindermereSun.com

Any comments, suggestions, concerns regarding this post will be welcomed at info.WindermereSun@gmail.com

 

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31 October

In The Aftermath of Sandy, A Call For More Solar Energy !

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Dear Friends & Visitors/Viewers/Readers from 149 countries,

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One of the comments I’ve received from one of our Visitors/Viewers/Readers, via FaceBook, with regard to our Oct. 30, 2012 post “In Light of Hurricane Sandy, We Need More Solar Power ! We Need More Distributed Solar Power !, below:

My guess Susan is that solar energy provided less than .0001% of the energy in the storm region during this storm.”

I am glad that J had brought this up and my response to J is:  But J, we’re talking about after the storm…these regions will be out of power for days to weeks because they are not on distributed solar power. And they’re much more likely to be able to have power if they were on distributed solar power….not to mention the fact that if there were greater dependence on solar power and less dependence on fossil fuels, Hurricane Sandy would probably have been of much lower intensity level.   At this point, I’d like to reiterate item 10. and item 17. of  our Oct. 30 post:

  • 10.This afternoon, the climate activist group 350.org said it had asked its nationwide network of supporters to not only donate to the Red Cross in the aftermath of this week’s  devastating storm, but also to “urge the fossil fuel industry to divert the millions of dollars they are spending to influence the election towards vital recovery efforts.”  The group posted a petition on its website and claimed that “thousands” had already signed it.  Scientists say pollution arising from the burning of fossil fuels like oil, gas and coal significantly contributes to global warming, which in turn can increase the intensity of storms like Hurricane Sandy.  If you are interested in supporting 350.org  members in 189 countries, please go to 350.org
  • 17. Former VP Al Gore’s  blog post warned today, “the storm that ravaged the East Coast Monday is “a disturbing sign of things to come. We must heed this warning and act quickly to solve the climate crisis. Dirty energy makes dirty weather.”
  • I would also like to invite you to see this clip below, on “Hurricane Sandy Aftermath: Widespread Power Outages Expected”, with forecast of potentially 10 millions without electricity (whereas Irene left 7 millions without electricity) for a week or more:


    Here, at Sun Is The Future, we are calling for more Solar Power, we are calling for more Large-Scale and Distributed Solar Power! We need more  Solar Power everywhere ! Not only is Solar Power the cleanest power that would help to reduce the dumping of global warming pollution into the atmosphere every day, reduce the climate crisis, it is also more likely to allow us to have distributed power that would enable us to respond during crisis, enabling us to still have power individually rather than massively be without power. Write to your state (current and future) legislators and show your concern and support for policies that would encourage installations of Solar and Renewable Energy!  Time to Act!  At this point, I would like to invite you to visit several sites below, to help further your understanding and appreciation of some of the initiatives that have taken place.  Right now more than 16 states are in the process of working on State Initiatives for Solar. Please visit votesolar.org .  Nebraska state has a group working on this also, even though they may not be currently listed under the State Initiatives at votesolar.org and the same is true for Florida and others. So keep checking back for other states that will be added in the future.  To find out your state candidates’ past voting record, please go to votesmart.org .  For more information on how you may be able to take part in helping to make the transition into our Renewable/ Solar Energy Age, please visit these sites below:

    1. votesolar.org & VoteSolar YouTube Channel
    2. American Solar Energy Society
    3. Alliance For Renewable Energy
    4. Solar Electric Power Association
    5. Solar Energy Industries Association
    6. Sun Is The Future & sunisthefuture YouTube Channel

    Please also keep in mind to check on the voting record of your respective state candidates and choose to support those who will support Effective/Sound  Renewable/Solar Energy bills !  If you have any questions/comments/suggestions/concerns, please feel free to email sunisthefuture@gmail.com and I will try to answer/respond/try to set your mind at ease or redirect you to better source. Please let us know if you’ve had some experience (in working toward/making the transition toward the solar/renewable energy age) that you’d like to share with others/us.

    gathered, written, and posted by sunisthefuture-Susan Sun Nunamaker, sunisthefuture@gmail.com

    There will always be more at http://www.sunisthefuture.net
    Homepage:  http://www.sunisthefuture.net


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