Order (Safe) Eclipse Viewers Now

Throwing an eclipse party? Don’t spoil the fun by blinding your guests — order your ISO compliant glasses and viewers now. You need to get the right ones. The American Astronomical Society has issued an advisory with info on making the safe choice:

To help the public obtain properly documented, vetted viewers, the AAS Solar Eclipse Task Force has compiled a list of vendors of safe solar viewers. For every seller on the list, we’ve confirmed three things: (1) the identity of the manufacturer, (2) that the manufacturer’s viewers have been tested for compliance with the ISO 12312-2 standard by a lab properly accredited to do so, and (3) that the viewers meet the standard’s transmittance requirements across the parts of the spectrum to which our eyes are at risk from overly bright light.

Some companies offer custom printing — partial eclipse, total party! — though the number that do is rapidly dwindling as the April 8th eclipse date approaches. The viewers pictured here are from Rainbow Symphony which is on the list. (“CE” appears to be the British standard.) Given what is at stake, the AAS warns against random internet searches which can turn up unscrupulous vendors selling unsafe products:

We do not recommend searching for eclipse glasses on Amazon, eBay, Temu, or any other online marketplace and buying from whichever vendor offers the lowest price. Before you buy a solar viewer or filter online, we recommend that you make sure that (1) the seller is identified on the site and (2) the seller is listed on this page.

Paul Edward Parker writes in the ProJo on the local aspects of the big day here in Rhode Island:

From 2:15 to 4:38 p.m. April 8, the moon will partially cover the sun. This will be visible from all locations in Rhode Island. The maximum eclipse, when just more than 90% of the sun will be blocked, will be at 3:29 p.m.

And what about our local institutions?

Two prominent local observatories, the Ladd Observatory at Brown University in Providence and the Frosty Drew Observatory and Science Center in Charlestown, will be closed because their staff will be traveling — to Texas, Canada and points in between — to see the total eclipse.

(Female scientists should of course avoid Texas . . . at all times.)

Go here for a list of the suppliers of safe solar viewers and filters.

 

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