Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Filamentary nebula  ·  Lace-work nebula  ·  NGC 6960  ·  The star 52Cyg  ·  Veil nebula
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Western Veil nebula / Cygnus loop - NGC6960 - Hubble palette - LRGB composition, David Lindemann
Western Veil nebula / Cygnus loop - NGC6960 - Hubble palette - LRGB composition
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Western Veil nebula / Cygnus loop - NGC6960 - Hubble palette - LRGB composition

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Description

LRGB Composition Formula :

L = H-a + OIII unbinned

R = SII binning 2x2

G = H-a unbinned

B = OIII binning 2x2 + OIII binning 1x1

Captured 30/06/2014, 02/07/2014 and 05/07/2014 with Takahashi FSQ106ED @f/5 530 mm focal length with Apogee Alta U8300 monochrome and Astrodon H-alpha, SII and OIII filters 5 nanometers.

H-a - 15 x 20m unbinned = 5h

SII - 6 x 20m binning 2x2 = 2h

OIII - 8 x 20m unbinned = 2h40

OIII - 6 x 20m binning 2x2 = 2h

Total exposure time = 11h40m

Software: MaximDL to capture - CCDStack to calibrate, register, normalize, data reject and combine - Photoshop CS5 and PixInsight for HDR, color combine and non-linear streching.

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Western Veil nebula / Cygnus loop - NGC6960 - Hubble palette - LRGB composition, David Lindemann