M8 (NGC 6523) The Lagoon Nebula & M20 (NGC 6514) The Trifid Nebula LRGB+HA
Shot over 10 nights from my backyard observatory late august, early sep 2012, this is a LRGB (luminance, red, green and blue) + H-Alpha image using the TMB92SS refractor and QHY9M monochrome CCD. For me this is quite a difficult target as it lies at only 22 degrees above my horizon at it's peak. Because of this I was also limited to about 2 hours each "clear" night of shooting as the object quickly dissapears to the western horizon.
Total Exposure 7.5 hours
Clear Skies
Terry
Down Under ObservatoryDown Under Observatory on FacebookYouTubeImage Information
Location: DownUnder Observatory, Fremont MI
Date of Shoot August 21, 22, 23, 28. September 3, 5, 6, 7, 10, 11 2012
Exposures:
QHY9M mono CCD
RGB 6 x 10 min each
Luminance 19 x 5 min
H-Alpha 3nm 9 x 20 min
Camera: QHY9M monochrome CCD, cooled to -30C
www.astrofactors.comStarlightXpress Color Filter Wheel
Scope: Thomas M. Back TMB 92SS F5.5 APO Refractor
www.astronomics.comAstro Tech AT2FF Field Flattener
For guiding: StarlightXpress Lodestar autoguider, StarlightXpress Ultra Slim Off Axis guider
Paramount GT-1100S German Equatorial Mount (with MKS 4000)
Image Aquisition Maxim DL
Stacking and Calibrating: CCDStack
Registration of images in CCDStack and Registar
Post Processing Photoshop CS5
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