About the Eclipse

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In our area, Monday’s solar eclipse will only be a partial one, maxing out at 92 percent. But it still may be an interesting viewing experience.

A little luck from the skies may be needed. At press time — 11:00 pm on Sunday — forecasts for cloud coverage range from 40 to 60 percent.

In and around Weston on Monday afternoon, the moon begins to block the sun at 2:11. It takes an hour and 15 minutes to reach the maximum partial eclipse, at 3:26, as illustrated below:

The eclipse recedes over the next hour and ten minutes. By 4:36, the moon is completely out of the sun’s way. The video below depicts the nearly 2½ hour path, compressed into 30 seconds.

Viewing

It is not safe to view even a partial eclipse with the naked eye. Also unsafe: viewing through sunglasses, smoked glass, or a telescope or camera not equipped with a special filter.

If you have purchased eclipse glasses, NASA recommends verifying that they are safe to use. An ISO standard should appear on the label, on an arm, or both. It should read “ISO 12312-2” or “ISO 12312-2:2015.”

Even with that marking, NASA recommends testing the glasses by putting them on at home and looking at a bright light. The light should appear very dim or not at all. You may be able to see a lightbulb filament, but if you see the glow, the glasses may not be safe.

Pets

Dr. Jerry Klein, chief veterinary officer of the American Kennel Club, says you don’t need to worry that your dog will stare at the sun, because they typically don’t. “They know enough not to,” he said.

Livestock and wildlife may show a reaction to the eclipse, but probably not dogs and cats. They may, however, exhibit “brief periods of confusion,” according to Dr. Katie Krebs of the University of Pennsylvania’s School of Veterinary Medicine.

Dr. Klein said anxiety that manifests in a dog is more likely caused by how humans react to the eclipse, especially when people gather to take in the experience. “If you can avoid taking your dog to a crowded place, do that,” he said. “If you can’t, keep your dog on a leash and make sure they feel safe and secure.”

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