"Pickering's Triangular Wisp"  Cygnus Veil Nebula central portion

Imaged 2008 August 15 th from my home observatory, Leigh on sea, Essex
Televue TVNP101 100mm APO refractor 540mm fl.
Sbig ST4 autoguider on G11 Mount
Starlight Xpress HX916 CCD camera
 Astronomik 13 Nm Ha filter used
Monochrome Ha image Ha 120 mins, 2hr total exposure.
All 5 min sub exposures. Bias and Flat calibration only.

My observatory location is heavily light polluted and the nearly full Moon was low in the South during the exposures.
Exposure taken between 00.10 and 02.30 BST. Sigma mask combined in MaxIm. Levels and Curves stretch only.

North is right and East is up in this image.

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