SUNSET: 
0
Photographer:
Miroslav Horvat
Location of Photo:
Zagreb, Croatia
Date/Time of photo:
06/20/2018, 07/07/2018., 07/08/2018.
Equipment:
Telescope: Skywatcher ED80, 0.85 FF/FR Camera: ASI1600mm pro @ -20°C Mount: SW EQ6 Pro Guiding: finderguider with QHY5L-IIc Exposure: Baader 7nm Ha filter, 117X3min, Gain 200, Offset 50 Baader 8.5nm OIII 53x3min, Gain 200 Offset 50, dark, flat, flat dark Total integration time: 8.4hrs Software: Sequence Generator Pro, PHD2, PixInsight
Description:
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint supernova remnant. The source supernova exploded circa 3,000 BC to 6,000 BC, and the remnants have since expanded to cover an area roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full Moon). There are three main visual components: The Western Veil (also known as Caldwell 34), consisting of NGC 6960 (the "Witch's Broom", "Finger of God", or "Filamentary Nebula") near the foreground star 52 Cygni; The Eastern Veil (also known as Caldwell 33), whose brightest area is NGC 6992, trailing off farther south into NGC 6995 (together with NGC 6992 also known as "Network Nebula") and IC 1340; and Pickering's Triangle (or Pickering's Triangular Wisp), brightest at the north central edge of the loop, but visible in photographs continuing toward the central area of the loop
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