Подробности на сайтах:
https://ru.wikipedia.org/wiki/%D0%A1%D0%BE%D0%BB%D0%BD%D0%B5%D1%87%D0%BD%D0%BE%D0%B5_%D0%B7%D0%B0%D1%82%D0%BC%D0%B5%D0%BD%D0%B8%D0%B5_20_%D0%BC%D0%B0%D1%80%D1%82%D0%B0_2015_%D0%B3%D0%BE%D0%B4%D0%B0
https://hi-tech.mail.ru/news/sun-eclipse-how-watch-safely.html
http://www.secl.ru/eclipse_catalog/2015_3_20.html