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Imaging telescopes or lenses: Celestron C9.25
Imaging cameras: SBIG ST-8XE
Mounts: Astro-Physics 400QMD
Guiding telescopes or lenses: Celestron C9.25
Guiding cameras: SBIG ST-8XE
Focal reducers: Antares f/6.3
Software: CCDWare CCDStack, Maxim DL, photoshop
Resolution: 1530x1020
Dates: May 8, 2011
Frames:
Astrodon LRGB CCD Imaging Filters (E-Series): 6x600" bin 1x1
Astrodon LRGB CCD Imaging Filters (E-Series): 15x600" bin 2x2
Integration: 3.5 hours
Avg. Moon age: 4.48 days
Avg. Moon phase: 21.07%
Bortle Dark-Sky Scale: 4.00
M51 in Canes Venataci
Optics: Celestron C9.25 @ f/6.35
Mount: Astro-Physics 400QMD
Camera: SBIG ST-8XE with AO-8
Filters: Astrodon Gen. 1 LRGB
Exposure: 6x10min L, 5x10min RGB
Calibration and stacking in CCDStack, final processing in Photoshop CS4.
