... 2010 September 20 . Aurora Over Norway . ... Explanation: Auroras can make spectacular sights. ... Although auroras might first appear to be moonlit clouds, they only add light to the sky and do not block background stars from view. Called northern lights in the northern hemisphere, auroras are caused by collisions between charged particles from the magnetosphere and air molecules high in the Earth's atmosphere. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. May 5, 1998 . Aurora at Midnight . Credit Copyright: J. Curtis ( U. Alaska Fairbanks ) . Explanation: What's happening behind those trees? Aurora . This picture was taken at midnight near Fairbanks , Alaska , and captures familiar trees, common clouds, and a glowing sky markedly different than a sunset . ... About APOD > . ...

Supernovae 2010lt in UGC 3378 . This page is devoted to information on Supernova 2010lt in UGC 3378 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered by David J. Lane, Kathryn Aurora Gray, and Paul Gray (Canada). ... David Lane's web page . ... Image Credit . ... 2011/01/03.465 . ...

BD Bonner Durchmusterung, F.W.A. Argelander, Bonner Sternverzeichniss, 1 bis 4 sektion, Astronomische Beobachtungen auf der Sternwarte de Kgl. Rhein/ Friedrich-Wilhelms-Unviersiaet zu Bonn (CDS Cat. I/122). CoD Cordoba Durchmusterung, J. M. Thome, Resultados del Observatorio Nacional Argentino 16 - 18; 21, 1892-1932 (CDS Cat. I/114). CPD Cape Photographic Durchmusterung, D. GIll and J. C. Kapteyn, Ann. Cape Obs. 3-5, 1895 - 1900 (CDS Cat. I/108). DM Durchmusterungen. GSC B. M. Lasker, C. R. Sturch, B. J.