NGC 6946, sometimes referred to as the Fireworks Galaxy, is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus.
  The galaxy was discovered by William Herschel on 9 September 1798. Its distance from Earth is about 25.2 million light-years .
Ten supernovae have been observed in NGC 6946 in the 20th and early 21st century .
  For this reason, NGC 6946 has sometimes been referred to as the "Fireworks Galaxy" .

 

NGC 6946 è una galassia a spirale posta sul confine tra le costellazioni del Cigno e di Cefeo

Questa galassia è famosa presso la comunità scientifica col nome di Fireworks Galaxy (Galassia fuochi d'artificio)^[1], a causa del numero di supernovae osservate, ben dieci negli ultimi 100 anni

 

L       900secX24 Bin1

R       600secX6   Bin1

G       600secX6   Bin1

B       600secX6   Bin1

 

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>Set CCD Temp.-20°C

>Night Temp. -°C

GM1000 HPS 10Micron Mount and Aries Tripod

Astrografo Ritchey–Chrétien GSO 10" Truss V3 

fl_2000mm f/8       
FOV 0°27'x 0°27'
resolving 0.76"pix
Moravian Instruments G2-4000 MARK II Monochrome CCD Camera :

    Sensor: Kodak KAI-4022 Monochrome CCD
    Resolution: 2056 x 2062 pixels
    Quantum Efficiency:  57% max
    Pixel Size: 7.4 x 7.4 µm
    Imaging Area: 15.2 x 15.3 mm
    Cooling: Two-stage Peltier up to -50°C

Baader Filters
Guide : SXV-AO-LF Active Optics - OAG Lodestar x2

Location : Alpi Friulane Luglio 2023