There will be a partial eclipse of the sun today. From the CBC:
The eclipse will start in Western Canada around 1:30 p.m. PT in Vancouver and Victoria and move east. At its peak around 3 p.m. PT, the moon will cover about two-thirds of the sun when viewed from southern B.C.
Generally, the eclipse will be greater (cover more of the sun) the further west and further north a viewer is.
In Toronto, Ottawa and Montreal, the eclipse will start around 5:40 p.m. ET. The sun will set during the eclipse, after the moon covers about one-third of the sun.
I won't be able to see any of it because I'll be at the Hilton doing a Murder for Hire show. However here, also from the CBC, are some safety tips if you want to look at it:
- Using a pinhole camera. Poke a hole in a piece of cardboard with the tip of a pen and position the cardboard so that the sun is on one side and a piece of paper is on the other, about half an arm's length or an arm's length away. That will project the sun's image onto the sheet of paper. "That's the safest way to do it," Attwood says. NASA Science News also suggests looking for crescent-shaped images cast on the ground and walls during the eclipse.
- Through No. 14 welder's glass or darker.
- Via a digital camera screen. However, Attwood says that without a special camera filter, it's hard to get the proper exposure to take good photos of the eclipse.
- Though special eclipse glasses. These protect your eyes using Mylar or dark plastic lenses. You can buy them at telescope or science stores or at eclipse viewing events. Astronomy author and photography Alan Dyer told CBC's The Homestretch that such glasses typically only cost about $1.
- Through binoculars or telescopes equipped with special filters. You can buy these at telescope or camera stores. Or you might get access at eclipse viewing events in your area.
- Online via your computer screen. Slooh, a service that streams telescope images of celestial events online, will be streaming the eclipse from the Prescott Solar Observatory in Arizona and other sites starting 5 p.m. ET., along with commentary from astronomers.