From prior to Mexico to Central America , more than 40 million people saw the moon obscure all or much of the sun . In the Bay area , more than half the moon was covered when the eclipse peaked at 11:20 a.m. As totality arrived at Hawaii , a cloud layer hid the sun . Three of ten scientific experiments at the eclipse observatory atop 13,800-foot Mauna Kea were thwarted . In San Jose , scientists used Mylar glasses , pinhole cameras , welder 's glass and an interference birefrigent hydrogen alpha filter telescope to view the event . In Hawaii , entrepreneurs hawked eclipse t - shirts , hats , posters and posters . Even haircuts .
From Hawaii to Mexico to Central America, more than 40 million people saw the moon obscure all or much of the sun. In the Bay area, more than half the sun was covered when the eclipse peaked at 11:20 a.m. As totality arrived at Hawaii, a cloud layer hid the sun. Three of ten scientific experiments at the astronomy observatory atop 13,800-foot Mauna Kea were thwarted. In San Jose, people used Mylar glasses, pinhole cameras, welder's glass and an interference birefrigent hydrogen alpha filter telescope to view the event. In Hawaii, entrepreneurs hawked eclipse t-shirts, hats, posters and cookies. Even haircuts.