Here’s how and where to watch the Aug. 21 solar eclipse | MyWindsorNow.com

Here’s how and where to watch the Aug. 21 solar eclipse

Tommy Wood
twood@greeleytribune.com

At approximately 10:04 a.m. on Aug. 21, Lincoln City, Ore., will go dark as the moon blots out the sun before what is being called the Great American Eclipse passes southeast across 13 other states, terminating when daylight re-emerges over Charleston, S.C. several hours later.

This will be the first total solar eclipse — when the moon completely blocks the sun's light — over the United States since 1979, and the first coast-to-coast eclipse since June 1918, when the outcome of World War I was still in doubt.

All of the country will experience some degree of the eclipse, but the nation's eyes are on the path of totality, that 70-mile-wide strip from Oregon to South Carolina in which the sun will be totally obscured. Colorado isn't in the path — Coloradoans' best bets to see the full eclipse are in Wyoming and Nebraska — but in the Centennial State it'll look like the sun had a big bite taken out of it. The eclipse will last less than three minutes in a given location, but those in and near its path have been preparing for much longer.

According to GreatAmericanEclipse.com, about 87 million people live in the path of totality or within a 200-mile drive of it, giving this the makings of a logistical nightmare.

"Wyoming is predicting that its population will double," said Jared Fiel, the regional communications director for the Colorado Department of Transportation. "(Interstate) 25 and U.S. 85 will both be fairly affected. We're not estimating how much, but just know that it's a lot."

Indeed, in Casper and Grand Teton National Park, two of the areas expected to attract numerous people from Colorado and elsewhere, hotel rooms and campsites have already nearly run out of space. A quick search of Airbnb on Friday showed the average price for a room in Casper over the eclipse weekend is $1,409; the same day, according to Expedia, 95 percent of Casper's hotel rooms were booked. All of Grand Teton's campsites have been reserved.

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"Trying to go up the day of is not a good plan because traffic is gonna be a nightmare," Charles Kuehn, an assistant professor of astronomy at the University of Northern Colorado, said. "Go up at least on Sunday, preferably on Saturday."

The lesson, if you're a Coloradoan who wants to watch the eclipse, is to leave early and find someplace off the beaten path. Kuehn recommended looking at Bureau of Land Management sites in Wyoming, as their camping regulations are more relaxed than in national parks and there are more sites that are filling less quickly.

Alternatively, Coloradoans could go to Nebraska, where towns such as Scotsbluff and North Platte are within the path of totality, but Kuehn said that NASA predicts more eclipse-obscuring cloud cover further east.

Wherever you see the eclipse from, you'll be witnessing something incredibly rare. The moon's orbit around the earth is titled by about 5 degrees, leaving only two times a year when the moon could possibly be in the proper phase and in the right position to block the sun. Two-thirds of the time, it's not, and there's only a partial eclipse. Combine that with the fact that water covers 71 percent of the earth's surface, and most eclipses occur partially or entirely over the ocean.

This gives astronomers unique opportunities for research. Total eclipses are the only time the corona, the hottest, outermost layer of the sun, is visible; the light we see comes from the photosphere, the second outermost layer that is 100 times cooler than the corona but a million times brighter. Studying the corona is critical in understanding solar flares and storms, which create beautiful phenomena like the Northern Lights but can also disrupt satellite communications. Astronomers can artificially block the photosphere by placing disks on their telescopes, but eclipses provide the clearest view.

Citizen scientists also are contributing to research around the country. The California Institute of Science is conducting a study on plant and animal behavior during the eclipse to verify or refute the anecdotal evidence that flora and fauna exhibit nighttime behavior during an eclipse. It's asking people within and outside of the path of totality to record plant and wildlife behavior near them.

Then there's GLOBE Observer, an app designed by NASA that lets people record atmospheric changes around them. It'll have special options for users to record air and surface temperatures before, during and after the eclipse, along with changes in wind and humidity. You don't have to be in the path of totality to use it and collect useful data.

Or, if you don't want to research, Wyoming and Nebraska are calling. Leave early, drive safely, protect your eyes (see sidebar) and, in Kuehn's words, "just watch and enjoy the experience."

How to view the eclipse safely

» The only time you can safely look at an eclipse with unprotected eyes if you are standing within the path of totality while the moon is fully covering the sun. If the sun is partially eclipsed, it’s just as dangerous to your eyes as it is normally. Sunglasses and unfiltered cameras, telescopes and binoculars won’t cut it.

“Even when it’s 95 percent covered, it’s still not safe to look at because the sun is just that bright,” UNC assistant professor of astronomy Charles Kuehn said.

» The easiest way for most people to safely view the eclipse is through eclipse glasses, which look like 3-D movie glasses and you can buy online. Make sure they’re certified ISO 12312-2 — it will say so on the glasses — as according to NASA that is the international standard for solar viewing.

» Welders can watch the eclipse through their hoods if they have a No. 14 filter or darker.

» You can build a pinhole camera — which lets you look at the eclipse indirectly — or install a solar filter on your telescope. Most telescope manufacturers should sell solar filters.

» Have some common sense. You wouldn’t stare at the sun with unprotected eyes any other time, so don’t do it on Aug. 21.

Watching the eclipse from 13,804 feet high in the mountains

For only the most dedicated, the eclipse’s path of totality will pass over Gannett Peak, the highest mountain in Wyoming, the highest in the Rocky Mountains outside of Colorado and the highest point within the path of totality.

Gannett is a six-hour drive from Greeley — take Colo. 287 to Laramie, go west on Interstate 80, then at Rock Springs exit onto Highway 191 and take it north to Pinedale, then start hoofing it on the Pole Creek Trail — and its remoteness means you should encounter less of the masses that will gather elsewhere in Wyoming.

But that isolation also works against you. Outside of Denali in Alaska and Mount Tacoma (Rainier) in Washington, Gannett is considered the hardest state high point to reach. The standard route is 40 miles round-trip with more than 9,000 feet of elevation gain and involves traversing a glacier, among other steep snow and ice climbing, and Class 3 scrambling.

It takes most people three to five days to summit and descend. Crampons, an ice axe and rope are a must. But if you want your eclipse viewing to come with a side of an unparalleled mountaineering experience, start on Aug. 19 or 20 and summit before 10:30 a.m. on the 21st.

Learn more about the eclipse

UNC assistant professor of astronomy Charles Kuehn will give four public talks about the eclipse in August. They’re appropriate for all ages, and every attendee will get a free pair of eclipse glasses. More information also can be found at https://eclipse2017.nasa.gov/.

» Aug. 9, 6 p.m., at the Erie Library

» Aug. 15, 6 p.m., at the Centennial Park Library

» Aug. 17, 6 p.m., at the Carbon Valley Regional Library

» Aug. 19, 2 p.m., at Loveland Aleworks

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