M8 and M20 LRGB+HA image

M8 and M20 LRGB+HA


Acquisition Details
  • Number of frames:
  • FPS:
  • Focal length:
  • CMI/CMII/CMIII:
Description

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. Total Exposure 7.5 hours 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 StarlightXpress Color Filter Wheel Scope: Thomas M. Back TMB 92SS F5.5 APO Refractor Astro 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