Astro Images: June-July 2012

12" LX200R, Paramount ME, STL-11000M C1

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NGC6822 - Barnard's Galaxy (LX, RGB Image)

(4.5 hours total exposure - Ls - synthetic luminance from RGB; R 3x20 min, G 7x10 min, B 7x20 min, all binned 2x2; July 2012)

M27 - The Dumbbell Nebula CFHT Palette (Ha-OIII-SII) (LX, Narrowband Image)

(18 hours total exposure - Ha for Red 12x30 min, OIII for Green 12x30 min, SII for Blue 12x30 min, all binned 1x1; July 2012)

M27 - The Dumbbell Nebula Hubble Palette (SII-Ha-OIII) (LX, Narrowband Image)

(18 hours total exposure - SII for Red 12x30 min, Ha for Green 12x30 min, OIII for Blue 12x30 min, all binned 1x1; July 2012)

M57 - The Ring Nebula CFHT Palette (Ha-OIII-SII) (LX, Narrowband Image)

(35 hours total exposure - Ha for Red 16x30 min B1 plus 6x30 min B2, OIII for Green 12x30 min B1 plus 8x30 min B2, SII for Blue 5x30 min B1 plus 19x30min B2; June 2012)

M57 - The Ring Nebula Hubble Palette (SII-Ha-OIII) (LX, Narrowband Image)

(35 hours total exposure - SII for Red 5x30 min B1 plus 19x30min B2, Ha for Green 16x30 min B1 plus 6x30 min B2, OIII for Blue 12x30 min B1 plus 8x30 min B2; June 2012)

M57 - The Ring Nebula (LX, RGB Image)

(2 hours total exposure - R 26x2 min, G 24x1 min, B 21x2 min, all binned 1x1; June 2012)