Daily Archives: December 21, 2014

Veil Nebula

21 дек

Veil Nebula

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 some 5,000 to 8,000 years ago, 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, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years.

The Hubble Space Telescope captured several images of the nebula. The analysis of the emissions from the nebula indicate the presence of oxygen, sulfur, and hydrogen. This is also one of the largest, brightest features in the x-ray sky.

Imaging telescopes or lenses: Takahashi FSQ 106ED
Mounts: Paramount ME
Guiding cameras: QSI 683wsg
Software: Pleaides Astrophoto PixInsight 1.8, Maxim DL
Resolution: 2400×3060
Dates: Aug. 1, 2014
Frames: 96×1800″
Integration: 48.0 hours
Avg. Moon age: 4.54 days
Avg. Moon phase: 21.56%

“This is a 6 panel mosaic of the Veil Nebula in Ha imaged from SRO in California. Instead of the usual monochrome Ha look I did something a little different and mapped different brightness levels to different hues. I quite like it but I’m sure that it won’t appeal to everybody.” (Author: Rick Stevenson)