Integrated Flux Nebula, NGC6939 and NCG6946


Ãlvaro Ibáñez Pérez

Las Inviernas, Guadalajara, Spain

Mount: NEQ6 Pro II Tuning Belts
Telescope: TS115 Triplet APO refractor
Reducer: TS Optics 0,79x
Camera: CCD Atik 460ex Mono
Filters: Baader LRGB + IDAS LPS
Guiding: Lunático EZG-60 + SXLodestar
Focuser: RoboFocus + FocusMax
Capture: MaximDL
Processing: PixInsight Core

L: 15x600s bin1 (-5ºC)
RGB: 6x600s bin1 (-5ºC) for each channel

NGC 6946 and NGC 6939, two interesting deep sky objects in Cepheus and Cygnus constellations.

NGC6946, also known as the Fireworks Galaxy, is an intermediate spiral galaxy about 18 million light-years away, in the constellations Cepheus and Cygnus. The diameter of the galaxy is approximately 40000 light-years or just about a third of the size of the Milky Way.

NGC6939 is 8th magnitude open cluster.