"Veil Nebula" C33 (Eastern Veil)

Object Information:

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). The distance to the nebula is not precisely known, butFar Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years.

In modern usage, the names Veil NebulaCirrus Nebula, and Filamentary Nebula generally refer to all the visible structure of the remnant, or even to the entire loop itself. The structure is so large that several NGC numbers were assigned to various arcs of the nebula. 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"[7]) near the foreground star 52 Cygni. You can see my image here.
  • 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. In this image!
  • 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.

Detail:


More information here.

 
Exposure Information: 4h40' minutes exposure

Lights: 8x600" + 40x600" 800ISO
Darks: 15x300"
Flats: 30
Bias: 50

Temperature 22ºC
Moon phase 34%

Note: The image was taken on my 37th birthday. The best way to celebrate my birthday as a astrophtographer.
 
Imaged at: Prades, Tarragona, CATALUNYA - SPAIN
 
Equipment:

Optics - GSO- 200/1000 Newtonian f/5
Camera - Canon 450D moded (IR filter removed)
Mount - Sky-Watcher Neq6 PROII modified on a pier
Guiding scope – EZG 60/230
Guiding and planetary camera – ASI 174MC

Software: APT, PHD2, DSS, Star Tools

 
Image date: August 9, 2016