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Contains:  NGC 6995, Veil nebula, Network nebula, NGC 6992, IC 1340
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Long Focal Length Eastern Veil Mosaic, 


            Kevin Morefield
Long Focal Length Eastern Veil Mosaic

Long Focal Length Eastern Veil Mosaic

Technical card

Imaging telescope or lens:Planewave CDK14

Imaging camera:SBIG STX 16803

Mount:Paramount ME II

Guiding telescope or lens:Planewave CDK14

Guiding camera:SBIG STX 16803

Software:Adobe Photoship CCCCDWare CCDStack 2CCDWare CCDAutoPilot 5PixInsight

Filter:Baader 50mm H7,O8,S8 and LRGB

Resolution: 7182x4036

Dates:Aug. 31, 2017

Frames: 63x1200"

Integration: 21.0 hours

Avg. Moon age: 9.31 days

Avg. Moon phase: 69.89% job: 1717007

RA center: 314.047 degrees

DEC center: 31.492 degrees

Pixel scale: 0.728 arcsec/pixel

Orientation: 294.729 degrees

Field radius: 0.833 degrees

Locations: Sierra Remote Observatory, Auberry, California, United States

Data source: Own remote observatory

Remote source: Sierra Remote Observatories


The Veil Nebula, a 5,000-10,000 year old Supernova remnant, is too large for all but the widest fields of view. Indeed, this small segment of the structure required two panels with a large format camera. Imagining the entire 3 degree structure as a naked eye object is always fun.

This is a bi-color image of Ha and OIII. One thing I like about the Veil is that it is equally strong in OIII and Ha, the OIII might be a bit stronger. And as a narrow-band bi-color image it still comes out looking something like it might in wide-band color.

The left side is comprised of 18 OIII and 16 Hawhile the right side is 13 OIII and 16 Ha. All 20 minute subs. The differences were not planned but due to the luck of decent tracking and weather.



Kevin Morefield
License: None (All rights reserved)

Sky plot

Sky plot


Long Focal Length Eastern Veil Mosaic, 


            Kevin Morefield