Eastern Veil Complex with Shock Front (Randy Lindstrom)

Eastern Veil Complex with Shock Front

Acquisition Dates: 22, 23, 24 and 27 August 2022

Frames -- All gain 100,  -5°C, bin 1x1:
Ha: 64x300" (5h 20')
OIII: 77x300" (6h 25')
SII: 80x300" (6h 40')
R: 55x60" (55')
G: 40x60" (40')
B: 40x60" (40')

Integration: 20h 40'

Bortle Dark-Sky Scale: 4

This image of the Eastern Veil Nebula Complex combines both narrowband and broadband filter data. The starless nebula color is presented in an HSO palette. The narrowband stars were removed during post processing and replaced with RGB stars. All pre and post processing was done in PixInsight.

The field of view includes the eastern portion of a larger expanding debris cloud from a star that exploded 5-10 thousand years ago. The supernova remnant is about 2100 light-years away in the constellation Cygnus.

The Veil Nebula debris is expanding at a velocity of about 1.5 million kilometers per hour. The fast-moving debris plows into the surrounding gas and creates shock fronts, heating the gas to millions of degrees. The subsequent cooling of this gas produces the brilliant glowing color. The bright H-alpha shock wave along the bottom (in red) came out much more prominently than I expected after I stretched the data to nonlinear.

The dynamics of the shock wave are described in more detail in the attached article:  https://phys.org/news/2015-09-revisiting-veil-nebula.html

Imaged with Voyager
NOVAC

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic failed
Started	...
Astrometry.net job	6254648
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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