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

Technical card

Imaging telescope or lens: Takahashi FSQ106ED

Imaging camera: Alta U8300

Mount: CGEM

Guiding telescope or lens: Takahashi FS60-CB

Guiding camera: Atik 16IC

Software: PixInsight 1.8StratonMaximDL 5Adobe Photoshop CS5

Filters: Ha 5nmOIII 5nmSII 5nm

Accessory: Atik EFW2 Filter Wheel

Resolution: 2558x3378

Dates: June 30, 2014

Frames: 35x1200"

Integration: 11.7 hours

Avg. Moon age: 2.42 days

Avg. Moon phase: 6.49% job: 315095

RA center: 312.326 degrees

DEC center: 30.736 degrees

Pixel scale: 2.100 arcsec/pixel

Orientation: 90.169 degrees

Field radius: 1.236 degrees

Locations: Observatoire personnel, Vérossaz, Valais, Switzerland


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.



David Lindemann

Sky plot

Sky plot


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