NGC 6946 is also known as "Fireworks Galaxy". Nine supernovae have been observed in this galaxy in the last 100 years. SN 1917A, 1939C, 1948B, 1968D, 1969P, 1980K, 2002hh, 2004et and 2008S.
Objekt: NGC 6946 and SN2008S, type IIn
Datum: 080304
Tid(UT): 20:45-22.24
Teleskop/optik: Newton 0,444 m, f/4,4
Filter: Schuler CBVR
Film/Kamera: SBIG ST-7E (-35C), CFW-8
Exponeringstid: Clear 4x5min (bin1); B 3x5min (bin1); V 2x5min (bin1); R 5min
Väder/gränsmag: Clear, rural sky, seeing 2.5"
Observationsort: Sandvretens observatorium 30 km W Uppsala, Sweden
Observatör: L. Hermansson
E-post: lars.hermansson4[at]comhem.se
Copyright?: Ja
Övrigt: Calibration in MaximDL and final retouch in Photoshop.
