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Sky Astro - CCD

Sky Astro - CCD

A site dedicated to astrophotography

  • ABOUT
  • IMAGES
    • Sites without light pollution
    • Site of extreme light pollution
    • Solar system images
  • OBSERVATORY
  • EQUIPMENT
    • Personal equipment
    • Rental equipment
    • Choosing equipment for astrophotography
  • PREPARING FOR A SESSION
    • Astronomical calculations
    • Telescope collimation
    • Setting up the telescope
    • Find the polar axis of rotation
    • Make a PEC
    • Autoguiding
    • Focusing the camera
    • Suggested exposure times
    • Maximum exposure time in light pollution
    • Using narrow band filters ...
  • IMAGE ACQUISITION
    • The different image formats
    • Acquisition of images used for preprocessing
    • Acquisition of deep sky images
  • IMAGE PROCESSING
    • The different compositing methods
    • Image preprocessing
    • Processing deep sky images
    • Planetary image processing
    • LRVB technique
  • ADVANCED TREATMENTS
    • Create a synthetic green layer
    • Create a Synthetic Luminance Image
    • Correct the red-salmon color
    • Color balance using curves
    • Remove dust, colored pixels and other imperfections
  • FILES
  • RÉFÉRENCES
    • Software for astrophotography
    • Miscellaneous links
    • Bibliography
  • ENGLISH
  • Toggle search form

ACQUIRING IMAGES FOR THE DEEP SKY

Before undertaking the acquisition of deep sky images, it is important to know the different image formats so as not to lose the information which required a lot of effort during the preparation and acquisition of these images. As these images are very dim and require long exposure times, they must be preprocessed to remove thermal noise from the camera, for example. Finally, there will be the presentation of the technique to use to take this type of photo in order to reveal all the details of these dark objects.

Here are the sections that will be presented:

  • The different image formats
  • Acquisition of images used for preprocessing
  • Acquisition of deep sky images

Richard Beauregard

Sky Astro - CCD

Revised 2021/01/05

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