The Western Veil (also known as Caldwell 34), consisting of NGC 6960 (the "Witch's Broom"),
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, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago. At the time of the explosion, the supernova would have appeared brighter than Venus in the sky, and visible in the daytime.
The remnants have since expanded to cover an area of the sky roughly 3
degrees in diameter (about 6 times the diameter, and 36 times the area,
of the full Moon). While previous distance estimates have ranged from 1200 to 5800light-years, a recent determination of 2400 light-years is based on direct astrometric measurements. (The distance estimates affect also the estimates of size and age.)
Telescope : SW Esprit 100ED
Mount : Skywatcher EQ6-R
Camera : Atik 460 mono
Guiding :ZWO off-axis guider with QHY 5IIL
Filters :Ha ,OIII,RGB Total exposure time : 13 hours & 24minutes
Programs I have used : Nina 2.1 _ PixInsight 1.8.9
Location: Grammatiko, Attiki
