. Bright Supernovae - 2011 . This data comes from IAU Circulars and occasionally more data will be provided on IAU 's Astronomical Headlines page. An archive of the 2011 updates to this page is available. This is a partial list of the SN discovered in 2011. Since 2011 is still ongoing, please look at the main page for the latest data. Note that Extra galactic Novae have been moved to a special Extra galactic novae page . For more information, you can look at the following Supernova Catalogs: . IAU List of