AR1520 h-alpha 15/07/2012July 15, 2012|Sun, Sun H-alpha Home » Sample Page » Sun » AR1520 h-alpha 15/07/2012 AR1520 overview seen on 15/07/2012 Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Name* Email* Website Save my name, email, and website in this browser for the next time I comment. Time limit is exhausted. Please reload the CAPTCHA. 5 + = thirteen By using this form you agree with the storage and handling of your data by this website. * This site uses Akismet to reduce spam. Learn how your comment data is processed.