The Veil Nebula

The Veil Nebula

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The Veil Nebula (Narrowband).  The Eastern Veil (top) in its entirety, and about half of the Western Veil on bottom.  Captured with a Tak FSQ 106 and QSI683 with Astrodon 3nm filters.  15x900sec Ha, 15x900sec OIII, 10x900sec SII. recently published a fascinating article on the Veil, including some great Hubble Space Telescope (HST) images.  Here’s an excerpt from the article:

The Cygnus Loop, or Veil Nebula as it is sometimes called, is the expanding remains of a massive star (about 20 times the mass of the sun) that exploded some 5,000 – 10,000 years ago in our Milky Way galaxy.  Its distance is still a matter of debate, but is roughly 2,100 lightQyears.  Over 3 degrees across (six times the angular size of the moon), its physical diameter is some 110 lightQyears.  (Note: At this scale, the WFC3 image is just about 2 lightQyears across.)

The Veil Nebula - Annotated
The Veil Nebula – Annotated


Resolution ........ 2.100 arcsec/pix
Rotation .......... -131.734 deg
Focal ............. 530.50 mm
Pixel size ........ 5.40 um
Field of view ..... 57' 35.9" x 42' 45.7"
Image center ...... RA: 20 44 58.312  Dec: +30 51 10.03