The Western Veil Nebula (NGC 6960)

Posted by CraigAndTammy
on Tuesday, September 14, 2010
This western portion of the Veil Nebula supernova remnant is also known as "The Witch's Broom". Even though it has a composite magnitude of 7.00, it is remarkably difficult to see visually without an OIII nebular filter. It is part of a larger area known as the Cygnus Loop, which also consists of the Eastern Veil and Pickering's Triangular Wisp. Of note is the large number of foreground stars. These stars are from our own Milky Way, as one of its arms lies in the line-of-sight with Cygnus.

Telescope: Stellarvue Raptor SVR105 @ f/7
Accessories: Stellarvue SFF7-21 flattener
Mount: Orion Atlas EQ-G controlled by EQMOD
Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD
Camera: QHY9-C one-shot color CCD @ -20.0C
Filters: Astronomik IR block
Exposure: 164 x 240sec (10hr. 56min.)
Acquisition: ImagesPlus 4.00 Camera Control
Processing: ImagesPlus 3.80a – Calibrated, registered, Min/Max excluded average, DDP, curves, levels, color balance
Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja; Carboni’s Tools
Date(s): September 3, 4 & 5, 2010
Temperature(s): N1:73ºF - 65ºF; N2:70ºF - 60ºF; N3:71ºF - 61ºF
SQM reading (begin - end): N1:18.91 - 19.52; N2:19.21 - 19.51; N3:19.27 - 19.60
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