The solar eclipse sweeping across the U.S. on Aug. 21 will throw serious shade on three well defined boating areas: the coastal waters of Oregon, the Upper Mississippi River and tributaries of the Great Loop and the Intracoastal Waterway from Charleston to Georgetown, South Carolina. (See maps below.)
The state of Oregon has issued some advice to its boating population that might apply to anyone thinking of watching the eclipse while on the water.
OREGON'S ADVICE TO BOATERS
* Arrive early. Expect gridlock on highways and access points before, during and after the event. Once out on the water, plan to stay a while. If a boating facility is at capacity, have a backup plan for where to go. Single cars that park in boat trailer parking may be ticketed or towed. Parking on road shoulders or in the grass is discouraged due to potential fire hazards and could impede emergency responders.
* Have plenty of food, water, and anchor line. It’s also highly recommended to have a port-a-potty and to take advantage of floating restrooms. Leave no trace; dispose of garbage properly.
* Prep your boat ahead of time. Avoid prepping the boat at the ramp to keep the ramp clear for efficient launching and retrieving for others. Paddlers are urged to use the bank to launch and retrieve.
* Anchor or beach the boat during the different phases and totality. With congested waterways comes the increased risk of collisions. It’s best to find a good spot and stay put. If you need to be underway, go slow and be aware of what’s directly in front and to the sides of you. Expect people in float toys and wading in the water near the shoreline.
* Have special viewing glasses for the eclipse and avoid looking in the sky for long periods of time. Alternate between the viewing glasses and regular sun glasses to protect your eyes from not only the sun, but the glare off the water.
* Observe all regulations, including slow-no wake rules at boat ramps, marinas or moorages, floating home moorages and people working at water level. As an added courtesy, operate at slow-no wake speeds within 100 feet of other boaters.
All boating and night time navigation rules apply. Running lights are required during the eclipse and anchor lights are required for power-driven boats and sailboats at anchor. Nonmotorized boats can use a flashlight or lighted lantern. It’s important to be seen during the two minutes of darkness.
Law enforcement will be on the water, paying close attention to boats operating unsafely during the eclipse. The fine for unsafe boating is $465, so be patient, courteous, and stay on the water a while to fully enjoy this once-in-a-lifetime event.
NASA SAFETY ADVICE
Looking directly at the sun is unsafe except during the brief total phase of a solar eclipse (“totality”), when the moon entirely blocks the sun’s bright face, which will happen only within the narrow path of totality
The only safe way to look directly at the uneclipsed or partially eclipsed sun is through special-purpose solar filters, such as “eclipse glasses” (example shown at left) or hand-held solar viewers. Homemade filters or ordinary sunglasses, even very dark ones, are not safe for looking at the sun; they transmit thousands of times too much sunlight. Refer to the American Astronomical Society (AAS) Reputable Vendors of Solar Filters & Viewers(link is external) page for a list of manufacturers and authorized dealers of eclipse glasses and handheld solar viewers verified to be compliant with the ISO 12312-2 international safety standard for such products.
- Always inspect your solar filter before use; if scratched or damaged, discard it. Read and follow any instructions printed on or packaged with the filter.
- Always supervise children using solar filters.
- Stand still and cover your eyes with your eclipse glasses or solar viewer before looking up at the bright sun. After looking at the sun, turn away and remove your filter — do not remove it while looking at the sun.
- Do not look at the uneclipsed or partially eclipsed sun through an unfiltered camera, telescope, binoculars, or other optical device.
- Similarly, do not look at the sun through a camera, a telescope, binoculars, or any other optical device while using your eclipse glasses or hand-held solar viewer — the concentrated solar rays will damage the filter and enter your eye(s), causing serious injury.
- Seek expert advice from an astronomer before using a solar filter with a camera, a telescope, binoculars, or any other optical device. Note that solar filters must be attached to the front of any telescope, binoculars, camera lens, or other optics.
- If you are within the path of totality (https://go.nasa.gov/2pC0lhe(link is external)), remove your solar filter only when the moon completely covers the sun’s bright face and it suddenly gets quite dark. Experience totality, then, as soon as the bright sun begins to reappear, replace your solar viewer to look at the remaining partial phases.
- Outside the path of totality, you must always use a safe solar filter to view the sun directly.
- If you normally wear eyeglasses, keep them on. Put your eclipse glasses on over them, or hold your handheld viewer in front of them.
Note: If your eclipse glasses or viewers are compliant with the ISO 12312-2 safety standard, you may look at the uneclipsed or partially eclipsed Sun through them for as long as you wish. Furthermore, if the filters aren't scratched, punctured, or torn, you may reuse them indefinitely. Some glasses/viewers are printed with warnings stating that you shouldn't look through them for more than 3 minutes at a time and that you should discard them if they are more than 3 years old. Such warnings are outdated and do not apply to eclipse viewers compliant with the ISO 12312-2 standard adopted in 2015. To make sure you get (or got) your eclipse glasses/viewers from a supplier of ISO-compliant products, see the American Astronomical Society (AAS) Reputable Vendors of Solar Filters & Viewers(link is external) page.
An alternative method for safe viewing of the partially eclipsed sun is pinhole projection. For example, cross the outstretched, slightly open fingers of one hand over the outstretched, slightly open fingers of the other, creating a waffle pattern. With your back to the sun, look at your hands’ shadow on the ground. The little spaces between your fingers will project a grid of small images on the ground, showing the sun as a crescent during the partial phases of the eclipse. Or just look at the shadow of a leafy tree during the partial eclipse; you'll see the ground dappled with crescent Suns projected by the tiny spaces between the leaves.
A solar eclipse is one of nature’s grandest spectacles. By following these simple rules, you can safely enjoy the view and be rewarded with memories to last a lifetime